Answer:
150 in²
Step-by-step explanation:
5 x 5 x 6 = 150
surface area of cube is 6 times (6 congruent faces) of one face. 5 x 5 = 25
25 x 6 = 150
Answer:
a) 11%
b) 56%
Step-by-step explanation:
a) A= πr^2 6^2π= 36π A= 18^2π = 324π
36π/324π = .111111111111111111111111 or 11%
remember to cancel out the pi symbols when you are showing your work
(put a line across the pi symbols when dividing)
b) A= πr^2 18^2 π = 324π
A= πr^2 12^2π = 144π
324 – 144 = 180
180π/324π = .5555555555555555555555556 or 56%
remember to cancel out the pi symbols when you are showing your work
(put a line across the pi symbols when dividing)
639÷9=71. You can check your answer by doing 71x9=639
