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lizz1228
19.07.2019 •
Mathematics
Given that angle dab and angle dcb are right angles and measure bdc = 54°, what is mcad? (the figure is not drawn to scale.) a. 342 b. 216 c. 324 d. 288
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Ответ:
Given: DAB and DCB are right angles; BDC = 54°
Required: arc mCAD
Solution:
(2 x 54°) + (2 x 54°) + (2 x 36°) = 288
Note: in getting 36°, deduct 54° and 90° (right angle) from 180° (which is the total degrees inside a triangle)
= 180° - 54° - 90°
= 36° - this is the angle CBD or angle ABD
Ответ:
ummm
Step-by-step explanation: