PLEASE HELP PLEASE HELP A cylinder-shaped water tank is 160 cm tall and measures 87.92 cm around.

What is the volume of the water tank?

Enter your answer as a decimal in the box. Use 3.14 for π.

Step-by-step explanation:

The volume formula for a cylinder is

In order to find the radius we need to use the circumference we were given. The formula for the circumference is

Filling in the info about the circumference value of 87.92:

or

87.92 = 6.28r so

r = 14

Now that we know the radius we can fill in the volume formula:

and

V = 98470.4 cm cubed

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.