Answer:
21
Step-by-step explanation:
Multiply by 3 and find out.
Answer:
B. SSS
Step-by-step explanation:
All of the sides are the same
Answer:
Step-by-step explanation:
(Vertical angles)
(Measure of minor arc is equal to the measure of it's corresponding central angle)

Answer:
8.80
Step-by-step explanation:
(S. D.)^2=summation(x-mean)^2/(n-1)
S. D.=sqrt(388/5)
S. D.=8.80