Problem 635: Semicircle, Diameter, Perpendicular, Inscribed Circle, Radius

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

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Problem 622: Intersecting Circles, Concyclic Points, Centers, Radii

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

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Problem 610: Intersecting Circles, Radius, Parallel, Common Tangent, Angle, 90 Degrees

Geometry Problem
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Geometry Problems 521 - 530

Ten Geometry Problems
Click the figure below to see problems 521-530 about: Circle, Tangent, Diameter, Congruence, Triangle, Squares, Altitude, Rectangle, Area, Collinear, Median, Trapezoid, Measurement, Radius, Equilateral, Circumcircle.

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Level: High School, College geometry

Geometry Problems 491 - 500

Ten Geometry Problems
Click the figure below to see problems 491-500 about: Square, Right Triangle, Incircle, Inscribed Circle, Radius, Cyclic quadrilateral, Diagonal, Parallel, Chord, 120 Degrees, Angle bisector, Concurrent, Perpendicular.

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Level: High School, College geometry

Geometry Problems 461 - 470

Ten Geometry Problems
Click the figure below to see problems 461-470 about: Circle, Tangent, Right Angle, Center, Distance, Isosceles, Transversal, Measurement, 90 Degrees, Arc, Square, Radius, Concentric, Congruence, Chord.

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Level: High School, College geometry

Geometry Problems 291 - 300

Ten Geometry Problems
Click the figure below to see problems 291-300 about Triangle, Circle, Square, Congruence, Similarity, Circumradius, Perpendicular, Parallel, Secant, Tangent, Chord, Intersection, Midpoint, Radius, Angle.

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Level: High School, SAT Prep, College geometry

Geometry Problems 281-290

Ten Geometry Problems
Click the figure below to see problems 281-290 about Triangle, Square, Circle, Octagon, Congruence, Isosceles, Equilateral, 90 Degrees, Circular Sector, Semicircle, Tangent, Radius, Diameter, Harmonic Mean.

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Level: High School, SAT Prep, College geometry

Goldcorp (GG), Guatemala, Marlin, Criminal Charges and general country risk

The following is excerpted from IKN75. We tend to excerpt from the 'Regional Politics' section of The IKN Weekly more than the other parts (Fundamental Analysis of Mining Stocks, Stocks to Follow, Copper Basket, Market Watching) because info contained in the other bits usually pertains to companies we cover or recommend, so it's only fair paying subbers to keep that from the blog. But 'Regional Politics' serves its purpose in the Weekly as well, trying to spot trends and anticipate actions taken by governments that affect the playing fields further down the line. So here are your author's thoughts about mining and Guatemala from last weekend's edition, starting with the current issues faced by Goldcorp and then expanding. DYODD.

Guatemala: Environment Ministry Files Criminal Charges Against Goldcorp

Strangely enough (!) it’s been hard to find a decent English language news report about the action taken against Goldcorp (GG) by Guatemala’s MARN Environmental Ministry last week, but here’s a link to a translation done of one of many Spanish language reports (6) and here’s an excerpt:

Luis Ferraté, Minister of the Environment, has presented a criminal accusation to the Public Ministry against Montana Exploradora [Goldcorp Inc], insisting on an investigation into the discharge of residual waters from the tailings pond at the Marlin mine in San Marcos, because it may contaminate the Quivichil river.

The accusation, received by the Ministry on September 28, states that on September 23, the Marlin mine, owned by Montana, a subsidiary of the Canadian company Goldcorp, discharged water from its tailings pond and that this water may cause heavy metal pollution.

 The commentary after the report above then descends into “You Lie!” “No, You Lie!” etc, with GG denying and MARN assuring that GG had no right to discharge waters from its near overflowing tailings pond (due to recent rains) in the dead of night. There are better reports available in Spanish language (7).

However, be clear that this is a significant move on the part of Guatemala. The Marlin mine has long made the more polemic headlines of course, but this bringing of formal charges against the company by a government ministry is a different level from NGO accusations and GG platitudes. Frankly, our concern is less with Goldcorp at Marlin and more the general political risk atmosphere in Guatemala. The country is attracting attention from both sides of the mining sector, with the companies now looking at the country and its prospective regions with fresh eyes (note Tahoe THO.to, note Radius (RDU.v) and also the anti-mining activists looking upon it as a battleground laid out. With the government suspension of all new concessions and permits still in place (it’s been there a long time and the debate is now on to allow mining or not), the move made by MARN last week will strengthen the hand of those who would make the permitting ban more permanent. Personally speaking, I wouldn’t touch a Guatemala exposed project with a barge pole, no matter how good the rocks might be.

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Problem: 525 Circles, Diameter, Tangent, Radius, Congruence, Measurement

Geometry Problem
Level: High School, SAT Prep, College geometry.
Click the figure below to see the complete problem 525 about Circles, Diameter, Tangent, Radius, Congruence, Measurement.

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Problem 491: Square, Right Triangle, Incircle, Inscribed Circle, Radius

Geometry Problem
Click the figure below to see the complete problem 491 about Square, Right Triangle, Incircle, Inscribed Circle, Radius.


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Complete Problem 491

Level: High School, SAT Prep, College geometry

Problem 490: Tangent Circles, Arc, Radius, Circular Sector, Area

Geometry Problem
Click the figure below to see the complete problem 490 about Tangent Circles, Arc, Radius, Circular Sector, Area.


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Complete Problem 490

Level: High School, SAT Prep, College geometry

Problem 485: Square, Side, Circles, Tangent, Radius, Measurement

Geometry Problem
Click the figure below to see the complete problem 485 about Square, Side, Circles, Tangent, Radius, Measurement.


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Complete Problem 485

Level: High School, SAT Prep, College geometry

Problem 462: Square, Arcs, 90 Degrees, Circle, Tangent, Radius, Measurement

Geometry Problem
Click the figure below to see the complete problem 462 about Square, Arcs, 90 Degrees, Circle, Tangent, Radius, Measurement.


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Complete Problem 462

Level: High School, SAT Prep, College geometry

Problem 461: Three Circles, Tangent, Right Angle, Center, Distance, Measurement

Geometry Problem
Click the figure below to see the complete problem 461 about Three Circles, Tangent, Right Angle, Center, Distance, Measurement.


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Complete Problem 461

Level: High School, SAT Prep, College geometry

Problem 460: Circle, Tangent, Perpendicular, Radius, Distance, Measurement

Geometry Problem
Click the figure below to see the complete problem 460 about Circle, Tangent, Perpendicular, Radius, Distance, Measurement.


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Complete Problem 460

Level: High School, SAT Prep, College geometry

Problem 454: Triangle, Incircle, Inradius, Tangent, Circle, Radius

Geometry Problem
Click the figure below to see the complete problem 454 about Triangle, Incircle, Inradius, Tangent, Circle, Radius.


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Complete Problem 454

Level: High School, SAT Prep, College geometry

Problem 435: Triangle, Incircle, Inradius, Congruent circles, Tangent, Measurement

Proposed Problem
Click the figure below to see the complete problem 435 about Triangle, Incircle, Inradius, Congruent circles, Tangent, Measurement, Similarity.


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Complete Problem 435

Level: High School, SAT Prep, College geometry

Problem 418: Triangle, Incircle, Inradius, Equal Tangent circles, Radius

Proposed Problem
Click the figure below to see the complete problem 418 about Triangle, Incircle, Inradius, Equal Tangent circles, Radius.


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Complete Problem 418
Level: High School, SAT Prep, College geometry

Problem 407. Circle, Angle, Tangent, Perpendicular, Secant, Radius, Center

Proposed Problem
Click the figure below to see the complete problem 407 about Circle, Angle, Tangent, Perpendicular, Secant, Radius, Center.


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Complete Problem 407
Level: High School, SAT Prep, College geometry