What is the value of x? enter your answer in the box. x = ° triangle a b c. the measure of angle a is fifty five degrees, the measure of angle b is eighty degrees and the measure of angle c is x.

Triangles have, naturally, 3 angles. The sum of all 3 angles will always be 180 degrees, no matter the triangle. Angles A + B + C will always equal 180 degrees.

55 + 80 + x = 180
x = 180 - 80 - 55
x = 45°

It is the top one. the answer is -7. that is smallest