Question

The circle above has a radius of 11 cm. What is the area of the circle?

Use = 3.14

Answer 1

the area of a circle is \[\pi r^2\]
we know that r = 11
we know that pi = 3.14

so the answer is 3.14 * 11^2
= 3.14 * 121

Answer 2

The circumference of the bike tire above is 83.524 inches.

What is the radius of the bike tire? (Use 3.14 for .)

Answer 3

circumference = 2*pi*r
pi = 3.14
r = circumference/(2pi)
r = 83.524/(2*3.14)

Answer 4

volume = width * length * height

V = 3*3*3 +3*3*6

Answer 5

ok 2 more thanks