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igor_vitrenko [27]
3 years ago
10

I need help on this question ( Please show all work and explain clearly )

Mathematics
2 answers:
Nadya [2.5K]3 years ago
8 0

Answer:

C

Step-by-step explanation:

The equation of the area of a circle is \pi r^{2}.

We already know the diameter is 8, and the radius is half of the diameter, so it would be 4.

\pi 4^{2}. This is our equation now. Now, we need to square 4, and 4x4 is 16.

Since 16\pi and \pi16 are the same, C is the correct answer.

Vanyuwa [196]3 years ago
5 0

Answer:

C

Step-by-step explanation:

The area (A) of a circle is calculated as

A = πr² ( where r is the radius )

Here diameter = 8 cm , thus r = 8 ÷ 2 = 4 cm , thus

A = π × 4² = 16π cm² → C

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