Find the circumference of a circle whose area is 60 pi cm2

14.04 cm

Step-by-step explanation:

Since area of a circle = πr²

and area of the circle is 60π cm²

so 60π = π r²

60 = r²

r = √60

=

Now formula to find circumference of the circle is

circumference = 2 π r

                        = 2π ×  

                        = 2 × ( 3.14 ) (   )

                       = 14.04 cm

Therefore, 14.04 cm is the circumference of the circle.

the answer to the question is a  

it has the same slope and the same y-intercept.

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,