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Figure 10.33 shows a rectangle subdivided into four triangles. Jonathan says that because the angles in each of the four triangles add to 180°, the angles in the rectangle add to 180° + 180° + 180° + 180° = 720° but Ben says that the angles in a rectangle add to 90° + 90° + 90° + 90° = 360° Discuss the boys’ ideas. Beckmann, Sybilla. Mathematics for Elementary Teachers with Activities, (p. 465). Pearson Education. Kindle Edition.

Figure 10.33 shows a rectangle subdivided into four triangles. Jonathan says that because the angles in each of the four triangles add to 180°, the angles in the rectangle add to 180° + 180° + 180° + 180° = 720° but Ben says that the angles in a rectangle add to 90° + 90° + 90° + 90° = 360° Discuss the boys’ ideas. Beckmann, Sybilla. Mathematics for Elementary Teachers with Activities, (p. 465). Pearson Education. Kindle Edition.

Trigonometry (MindTap Course List)
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8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
Chapter2: Right Triangle Trigonometry
Section2.3: Solving Right Triangles
Problem 48PS: Figure 8 shows two right triangles drawn at 900 to each other. For Problems 45 through 48, redraw...
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Figure 10.33 shows a rectangle subdivided into four triangles. Jonathan says that because the angles in each of the four triangles add to 180°, the angles in the rectangle add to 180° + 180° + 180° + 180° = 720° but Ben says that the angles in a rectangle add to 90° + 90° + 90° + 90° = 360° Discuss the boys’ ideas.

Beckmann, Sybilla. Mathematics for Elementary Teachers with Activities, (p. 465). Pearson Education. Kindle Edition.

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