Geometry

Classifying Shapes: Categorizing Geometric Shapes - practice examples

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Do these exercises along with us. Remember what you've learned about perpendicular lines, and right, obtuse, and acute triangles.

Garfield'S Proof of the Pythagorean Theorem

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This module explains a proof of the Pythagorean Theorem developed by James Garfield, the twentieth president of the United States.

Angles with Triangles and Polygons: Triangle Angle - Multiple Ways to Solve

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Learn that there are multiple ways to solve for the angles of multiple triangles.

Triangles: Categorization by Angle or Equal Sides

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Learn how to use angle measurement and side length to classify triangles as scalene, isosceles, equilateral, acute, right, or obtuse.

Volume of Cones, Cylinders, and Spheres: Volume of a Cone

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Learn how to find the volume of a cone.

The Pythagorean Theorem: Introduction

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Learn about the Pythagorean Theorem and how it is used.

Acute, Right, and Obtuse Angles

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This module delves a little deeper into acute, obtuse, and right angles.

The Pythagorean Theorem Word Problem: Fishing Boat

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This word problem asks you to use the Pythagorean Theorem to calculate that length of the rope that attaches the mast of a fishing boat to its deck.

Another Pythagorean Theorem Proof

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This module shows you how to prove the Pythagorean Theorem visually.

Classifying Shapes: Categorizing Triangles

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Practice categorizing triangles as obtuse, acute, equilateral, and right.

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