Answer:
116.3
Step-by-step explanation:
Supplementary angles add to 180
One angle is 63.7, the other is x
63.7+x = 180
Subtract 63.7 from each side
63.7-63.7+x = 180-63.7
x = 116.3
Answer: x=-3
Step-by-step explanation:
Answer:R= r/13
Step-by-step explanation: