The main formula is A= 2pi r (H + r)
H= 9, and r= 11
so A= 2 *3.14*11* (9 + 11) = 1381.6 cm²
so the answer is <span>1380 cm2</span>
Answer:
The answer is 13 1/8ft3
Explanation:
Substitute into the formula:
Volume = 3 1/2 x 2 1/2 x 1 1/2
= 7/2 x 5/2 x 3/2
= 105/8
= 13 1/8 ft3
Answer:
65
Step-by-step explanation:
yessss
21(3a-2b) hope this help !
I’m sorry if I’m wrong
Answer:
a. 3x^2 = 81
x^2 = 27

Step-by-step explanation: