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Question

If an angle is 28o less than its complement, find its measure.

A
31o
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B
131o
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C
28o
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D
32o
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Solution

The correct option is A 31o
Let the required angle be x.
Then, its complement =(90ox).
Given, the angle is 28o less than its complement.
Then, x=(90ox)28o
x+x=90o28o
2x=62ox=622ox=31o.

Therefore, option A is correct.

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