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The diameter of the larger circle is 20.4 cm. The diameter of the smaller circle is 10.8 cm.


What is the best approximation for the area of the shaded region?


Use 3.14 to approximate pi.

A72.3 cm²

B235.1 cm²

C289.4 cm²

D326.7 cm²

URGENT DUE BY 2:30 WILL RATE GOOD:) The diameter of the larger circle is 20.4 cm. The diameter of the smaller circle is 10.8 cm. What is the best approximation class=

Verified Answer :

apologiabiology

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

onpoint11

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! :)

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