Answer:
Step-by-step explanation:
i dont know
X= 5 and it also equals -5
Answer: the answer is 129
Step-by-step explanation: 180 subtract by 51 and it will give u 129
Answer:
15°
Step-by-step explanation:
sum of exterior angles=360°
each angle=360/24=15°
b
20 ×n=360
n=360/20=18
18 sides
c.
(n-2)×180=174n
180n-174n=360
6 n=360
n=360/6=60
number of sides =60
