Question

Find the measure of an angle which is equal to its complement.

Answer 1

Hello there !
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let the angle be x 
its compliment be 90- x then 
According to question 90 - x = x 
                                   90      = 2x 
                                   45°    = x 
                                   45°    = 90 - x
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Answer 2

let us take the angle x

so, x+x =90

=> 2x =90

=> x =90/2

=> x =45

so,

the measurement

of an angle to its complement = 45