The ratio of base angle and a vertical angle is 5:7. Find each angle ?
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Answer:
total angle is 180.
the ratio base angle and vertical angle is 5:7.
let the ratio is to be 5x,7x.
5x+7x=180
=12x=180
x =180/12
x=15
5x=5into15=45
7x=7into15= 105
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