Answer:
281 ft²
Step-by-step explanation:
Cuboid + lateral surface area of the pyramid - square base
2[(4×12)+(4×5)+(12×5)] + 4[½×5×(12-7)] - 5²
2(48+20+60) + 4(12.5) - 25
2(128) + 50 - 25
256 + 25
281 ft²
Answer:
Step-by-step explanation:
Distribute:
=9t+1+(7)(1)+(7)(9t)
=9t+1+7+63t
Combine Like Terms:
=9t+1+7+63t
=(9t+63t)+(1+7)
=72t+8
The answer is one, because 1 is a absolute value so 1 x 10 is 10
Answer:
d. (73.9 in^2)
Step-by-step explanation:
I suppose that 9.7 in is the diameter.
R=D/2=9.7/2=4.8in
A=π*(R^2)=3.14*(4.8)^2=73.9 in^2