Explain how to use the additivity principle to determine the area of the darkly shaded triangle that is inside a rectangle in Figure 12.31. 2 units 2 units -5 units- 2 units.

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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7. Explain how to use the additivity principle to
determine the area of the darkly shaded triangle
that is inside a rectangle in Figure 12.31.
2 units
2 units
Figure 12.31
-5 units-
2 units -
Transcribed Image Text:7. Explain how to use the additivity principle to determine the area of the darkly shaded triangle that is inside a rectangle in Figure 12.31. 2 units 2 units Figure 12.31 -5 units- 2 units -
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