Question

Can someone please help me with this

Answer 1

Alright!

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

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 subtract.

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