SOLUTION: find the measure of angle A x+64 x+84 40*

Algebra.Com
Question 991894: find the measure of angle A
x+64
x+84
40*
Answer by Edwin McCravy(20055)   (Show Source): You can put this solution on YOUR website!
I assume you mean that those three angles are angles of
a triangle,

Since the sum of the three angles of any triangle is 180°,

We indicate their sum and set it equal to 180°

(x+64°)+(x+84°)+40° = 180°

Solve that and get x = -4°

Then use that value of x to find angle A.  We can't help
you any further because we don't know what angle is
represented by A.

Edwin
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