emestrella
emestrella emestrella
  • 04-03-2020
  • Mathematics
contestada

Can someone help me with this? I don’t need an explanation I just need the answer thank you :)

Can someone help me with this I dont need an explanation I just need the answer thank you class=

Respuesta :

amna04352
amna04352 amna04352
  • 04-03-2020

Answer:

87.92 in²

Step-by-step explanation:

pi × (R² - r²) = area

Where R is the radius of the outer circle and r of the inner circle.

Since C = 2pi×r

37.68 = 2×3.14×r

r = 6 in

R = 6 + 2 = 8 in

Therefore,

pi × (R² - r²) = area

Area = 3.14 (8² - 6²)

= 87.92 in²

Answer Link

Otras preguntas

1) how will the total distance traveled by a car in 2 hours be affected if the average speed is doubled? 2)A spider is crawling on the wall. First it crawls 1 m
drew's weekly allowance is $8.00.His friend Jann' s weekly allowance is $10 Drew spends $3 a week and Jan spends $4 a week. Write two expressions to show how mu
I am working percentages increases and decreases with problems like From 24 pencils to 30 pencils (increase  question) or From 20 miles to 11 miles ( decrease q
(8.41 x 10 to the fourth) + (9.71 x 10 to the fourth)
Charlie runs at a speed of 3 yards per second. About how many miles per hour does Charlie run
The sum of three consecutive even numbers is 156. What is the smallest of the three numbers
(8.41 x 10 to the fourth) + (9.71 x 10 to the fourth)
How can archaeologists continue to study ancient remains without infringing on the rights of Native Americans?
how do you find the actual diameter of a star going from arcseconds to kilometers?ex The supergiant star Betelgeuse (in the constellation Orion) has a measured
where is science done