Question

PLEASE HELPPPP I WILL GIVE BRAINLIEST

Answer 1

Answer:

D

Step-by-step explanation:

Area = pi r^2

d = 10

r = d/2

r = 5

Area = 3.14 * 5^2

Area = 3.14 * 25

Area = 78.5

Answer 2

Answer:

1. 78.5

2. 43.96

Step-by-step explanation:

well since

$\frac{diameter}{2} = radius$

the radius is 5 meters

the area of a circle is

$A = \pi r^2\\\\A = \pi (5)^2\\\\A = 25\pi\\\\A \approx 78.5$

the circumference of a circle is given by

$C = 2\pi r\\\\C = 2\pi (7)\\\\C = 14\pi\\\\C \approx 43.98$

guess is close enough to 43.96