AbigailChismar AbigailChismar

27-02-2019
Mathematics

contestada

What is the exact area of a circle with a diameter of 18 feet using pi

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

27-02-2019

Answer:

A = 81 pi ft^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

r is d/2

r = 18/2

r =9

We need to leave pi as pi since we are asked for the exact answer

A = pi 9^2

A = 81 pi ft^2

Answer Link

Otras preguntas

There are 4 semi-trailer trucks parked in a line at the rest stop. After the first truck, each truck in the line weighs 2 tons more than the truck before it. Th

compare and contrast southeast and northeast region

What multiplies to -300 and adds to 20

“The history of the present King of Great Britain is a history of repeated injuries and usurpations, all having in direct object the establishment of an absolut

14 points Which is an example of the inequality women faced in America in the mid-1800s? A. Women were prohibited from becoming school teachers. B. Women cou

49 After decaying for 48 hours, l/16 of the original mass of a radioisotope sample remains unchanged. What is the half-life of this radioisotope? (1) 3.0 h (3)

7. How does natural variation affect evolution?

A number cube is rolled 360 times. And the results are recorded as follows: 54 ones, 60 twos, 66 threes, 71 fours, 35 fives, and 74 sixes. What is the experimen

Here is another set of two question's. -------------------------------------------------------------------------------------------------------------- Which sent

Which word in this sentence is an open compound? Sojourner Truth was a former slave who traveled throughout New England and the Midwest speaking out against sla