The circumference of a circle is 15π centimeters. What is the area of the circle in terms of π? A. 7.5π cm2

56.25π cm²

Step-by-step explanation:

The circumference of a circle is given by

C = 2 * pi *r

15 pi = 2 * pi *r

Divide each side by pi

15 = 2r

Divide by 2

15/2 = 2r/2

7.5 = r

We want to find the area

A = pi r^2

A = pi (7.5)^2

A = pi *56.25

A = 56.25 pi

sin3a=12/15

step-by-step explanation:

since one side was multiplied by 3 the other side must also be multiplied by 3.

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)