Two angles, ∠1 and ∠2 , in a diagram are supplementary. If m∠1=77°, what equation can you write to solve for m∠2? Let m∠2=x°
Since two angles are supplementary, the sum of their measures is 180 degrees. Therefore, the equation to solve for m∠2 can be written as:
m∠1 + m∠2 = 180
Substituting m∠1 = 77 and m∠2 = x, the equation becomes:
77 + x = 180
This equation can be solved to find the value of x.