Question

What is the difference in the areas of a circle with diameter 4 m and a circle with diameter 6 m?

Answer 1

Hello!

To solve this you need to use the equation to find the area of a circle which is

$A = \pi r^{2}$

A is area
r is radius

Solve both circles
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Circle 1
$A = \pi 4^{2}$

Square the number

$A = 16 \pi$
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Circle 2

A = $\pi 6^{2}$

Square the number

$A = 36 \pi$
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Finding the answer

To get the answer you subtract the numbers

$36 \pi - 16 \pi = 20 \pi$

The difference is $20 \pi$ which is about 62.83 units

Hope this helps!