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Question

Find the measure of an angle which is 30 more than one half of its complement.

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Solution

Let us assume that the angle is x.

Then, its complement will be 90x.

30 degree more than one half of its complement is 30+(90x)2
According to the sum, x=30+(90x)2

x=60+90x2

x=150x2

2x=150x

3x=150

x=1503

x=50
Hence, the required angle is 50.


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