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together" met CON 8. Figure 10.33 shows a rectangle subdivided into four triangles. Jonathan says that because the an- bis 20 gles in each of the four triangles add to 180°, the angles in the rectangle add to 150 180° +180° + 180° + 180° $100770 = 720° but Ben says that the angles in a rectangle add top got 12. D 90° +90° +90° + 90° = 360° F Discuss the boys' ideas. Bung 9. Given that the lines in Figure 10.34 marked with arrows are parallel, determine the sum of the an- gles a + b + c without measuring. 个 29wer ni a s b Figur sedilo C10600

together" met CON 8. Figure 10.33 shows a rectangle subdivided into four triangles. Jonathan says that because the an- bis 20 gles in each of the four triangles add to 180°, the angles in the rectangle add to 150 180° +180° + 180° + 180° $100770 = 720° but Ben says that the angles in a rectangle add top got 12. D 90° +90° +90° + 90° = 360° F Discuss the boys' ideas. Bung 9. Given that the lines in Figure 10.34 marked with arrows are parallel, determine the sum of the an- gles a + b + c without measuring. 个 29wer ni a s b Figur sedilo C10600

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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together" method 8. Figure 10.33 shows a rectangle subdivided into four triangles. Jonathan says that because the an- gles in each of the four triangles add to 180°, the angles in the rectangle add to dai OI 180° +180° + 180° + 180° = 720° but Ben says that the angles in a rectangle add to 90° + 90° + 90° + 90° = 360° bas 01 Discuss the boys' ideas. 9. Given that the lines in Figure 10.34 marked with arrows are parallel, determine the sum of the an- gles a + b + c without measuring. e dnes Figure 10.33 A rectangle subdivided into four triangles. CORO 3 W b. 2 a b C lie Figure 10.34 What is the sum of the marked angles? Figur 12. I F V Fige star
Transcribed Image Text:together" method 8. Figure 10.33 shows a rectangle subdivided into four triangles. Jonathan says that because the an- gles in each of the four triangles add to 180°, the angles in the rectangle add to dai OI 180° +180° + 180° + 180° = 720° but Ben says that the angles in a rectangle add to 90° + 90° + 90° + 90° = 360° bas 01 Discuss the boys' ideas. 9. Given that the lines in Figure 10.34 marked with arrows are parallel, determine the sum of the an- gles a + b + c without measuring. e dnes Figure 10.33 A rectangle subdivided into four triangles. CORO 3 W b. 2 a b C lie Figure 10.34 What is the sum of the marked angles? Figur 12. I F V Fige star
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