Answer:
C = 65.97 in; r = 10.5 in
Step-by-step explanation:
The circumference is C = πd. Since the diameter is 21 in, the circumference is C = (3.14)(21 in) = 65.97 inches.
The radius is half the diameter:
r = (21 in) / 2 = 10.5 in
Answer:
200.43 yds
Step-by-step explanation:
84 x 84 = 7,056
70 x 70 = 4,900
7,056 - 4,900 = 2,156
= 46.43
84 + 70 + 46.43 = 200.43 yds
Answer:
1/3y(y + 12) - 12.
Pretty sure it's 1/3y(y + 12) - 12. I'm pretty sure I got it wrong tho.