Answer:
93 degrees
Step-by-step explanation:
supplementary means the two angles = 180 degrees
Thus, 180-87=93
Answer:
93
Step-by-step explanation:
Supplementary angles add to 180
Let x be the unknown angle
x+87 = 180
Subtract 87 from each side
x+87-87 = 180-87
x = 93
