You can use the area formula for a parallelogram to justify the area formula for a triangle.

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You can use the area formula for a parallelogram to justify the area formula for a triangle. Start with two congruent triangles with base b and height h. Place and label them as shown. Explain how you know that XYZW is a parallelogram and that Area of ΔXYW = 1/2bh.

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Related Book For  answer-question

Holt McDougal Larson Geometry

ISBN: 9780547315171

1st Edition

Authors: Ron Larson, Laurie Boswell, Timothy D. Kanold, Lee Stiff

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