The volume of clay used to build a cylindrical pillar with a height of 9 centimeters is 324π cubic centimeters. the area of the base of the pillar is π square centimeters.

Step-by-step explanation:

We are given that

Volume of cylinder =

Height of cylinder=9 cm

We have to find the area of  base of the pillar.

We know that

Volume of cylindrical pillar=

Where Base=

Substitute the values then we get

Hence, the area of base of the pillar=

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.