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Art [367]
3 years ago
13

Angle ABD and angle BDE are supplementary. Find the measures of both angles.

Mathematics
1 answer:
marishachu [46]3 years ago
3 0
By definition of supplementary angles,
∠ABD + ∠BDE = 180
5x + 17x - 18 = 180
22x = 198
x = 9

∠ABD = 5(9) = 45°
∠BDE = 180 - 45 = 135°
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