what is the area of a circle with a radius of 20 in a 100 Pi square units be 10 inches c 400 d40what is the area of a circle with a radius of 20 in a 100 beat nc400 or the 40 ​

answer: .75 km

step-by-step explanation:

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

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step-by-step explanation:

for future students the answer is b

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-lavira: )