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Angle a and b are supplementary angles. If m angle a = (x + 15) degrees and m angle b = (x - 13) degrees. Find measure of angle b. Please answer !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Respuesta :

Answer:

Step-by-step explanation:

Sum of supplementary angle is 180

So

a+b=180

(X+15)+(X-13)=180

2x+2=180

2x=178

X=178/2

X=89.

So angle b =x-13

=89-13

=76

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