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Sedaia [141]
4 years ago
12

Can someone please help me with this

Mathematics
1 answer:
CaHeK987 [17]4 years ago
6 0

Alright!

To solve, all we need to do is <em>subtract the area of the inner circle from the arear of the outer circle.</em>

But first, we need to find the area of both

Key equation: πr²

π = 3.14

Inner cirle area = π13²

π13² = 530.66

Outer cirle area = π21²

I got 21 by adding 8 and 13: both added together makes the radius of the larger circle

π21² = 1,385.74

Now let's <em>subtract. </em>

1,385.74 - 530.66 = 855.08

The area of the blue is = 855.08 yards²

_________________________________________________

Part 2:

Hexagon with 6cm sides and an apothem of 3\sqrt{3} cm

The answer is C. 93.53

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