Answer:
a b
Step-by-step explanation:
Answer:
r = 
r = 17.2 cm
Step-by-step explanation:
∵ The area of the circle A = πr²
∴ r² = A/π
∴ r = √(A/π)
∵ A = 54 cm²
∵ π = 22/7
∴ r = √(54/(22/7)) = √(54×7/22) = 17.2 cm
Answer:
8/10 are none of these. 8/10 is 80% unless your talking how much percent more to get to 10/10
Answer:
C.) 
Step-by-step explanation:
The area formula:

Insert the values:

Use the distributive property:

:Done