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03-11-2018
Mathematics

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ABCD is a rectangle. Angle A measures (4x − 15)° . Find x.

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ivana2103 ivana2103

03-11-2018

If the shape in question is a rectangle, we know for a fact that each angle is equal to 90 degrees (or a right angle). So, since any given angle is equal to 90, that includes angle A.

4x - 15 = 90
4x = 90 + 15
4x = 105
x = 105/4
x = 26.25

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