Mathematics, 11.02.2020 16:27 jesh0975556
Triangle BAC was dilated from triangle BDE at a scale factor of 2. What proportion proves that cos∠D = cos∠A?
Triangles BDE and BAC, in which angle B is a right angle, point D is between points B and A, and point E is between points B and C; BD measures 2 units, BE measures 3 units, and DE measures 3 and 61 hundredths units.
2/3.61 = 4/7.22
3/2 = 6/4
3/3.61 = 6/7.22
2/3 = 4/6
Answers: 3
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Triangle BAC was dilated from triangle BDE at a scale factor of 2. What proportion proves that cos∠D...
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