Question

URGENT DUE BY 2:30 WILL RATE GOOD:)

Answer 1

Areashaded=areabigcircle-areasmallcircle


areacircle=pir^2
d/2=r

big diameter=20.4, so radius i 20.4/2=10.2cm

small is 10.8/2=5.4


so
big-small
pi10.2^2-pi5.4^2
pi(104.04-29.16)
pi(74.88)
using 3.14=pi
235.1232 cm^2


answer is B

Answer 2

Answer: the answer is B. 235.1

Step-by-step explanation:

For the large circle the

Area = pi. • r • r

In other words,

Area = 3.14 • 10.2 • 10.2

Which equals 326.7

Then for the small circle the

Area = 3.14 • 5.4 • 5.4

Which equals 91.6

Then to find the shaded area,

326.7 - 91.6 =

235.1 cm squared

Hope this helps! :)