Question

I have absolutely no idea what this even is and it is a huge grade

Answer 1

50.27 (to 2dp)

Explanation:

radius = 4

area of circle = pi * r * r

16 pi is area = 50.2655 units^2 (to 4dp)

Answer 2

50.24

Explanation:

Area of the circle is
`\pi r^(2)`. If the diameter is 8, then we know that the radius is 4, because the radius is half of the diameter. Then solve. 4 squared is 16, then multiply by 3.14 in place of pi and you will get 50.24. So yes, you are correct, it is 50.24.