The expression πr² is used to determine the area of a circle, where r is the length of the radius. What does the expression π(5b
)² represent?
a) the area of a circle with radius 5
b) the area of a circle with radius 25
c) the area of a circle with radius 5b
d) the area of a circle with radius 25b²
1 answer:
The answer is c because all you are doing here is subbing the variable r for 5b.
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