Question

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°
(1 point)
Responses

x°+77°=180°
x plus 77 degrees equals 180 degrees

x°=77°
x equals 77 degrees

x°=90°−77°
x equals 90 degrees minus 77 degrees

x°+77°=90°

Answer 1

supplementary

Answer 2

x plus 77 degrees equals 90 degrees

Answer 3

My apologies for the incorrect response. Since the angles are supplementary, their sum must be 180 degrees. Therefore, the correct equation to solve for m∠2 is:

m∠2 + 77° = 180°