(08.01 LC)
Find the circumference and area of a circle with a diameter of 14 inches. Leave your
answers in terms of pi. (4 points)

Given:

Diameter of circle = 14 inches

To find:

Circumference and area of circle

Solution:

Radius of the circle = 14 ÷ 2 = 7

Circumference = 2πr

                         = 2 × π × 7

                         = 14π inches

Area of circle = πr²

                       = π × 7²

                       = 49π square inches

Circumference = 14π inches

Area = 49π square inches

828. all there is to it!

here, if you ever need with rounding (or other forms of arithmetic/math) again, use this:

thats the rounding one, but if you just click the top left, it shows you all the calculators you may need!

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9