NO LINKS!! Use the cylinder shown to mark each statement as true or false. Rewrite and correct any false statements.

1. The height of the cylinder is 4ft - True

2. The area of the base is equal to π(4^2) - False

The area of the base = π × r^2

r = d ÷ 2

r = 4 ÷ 2 = 2

Area of the base is = π(2^2)

3. The volume of the cylinder is 31.4 ft^3 - False

V=πr2h

π = 3.14159

r = 2

h = 4

V = 3.14159 × 2^2 × 4

= 3.14159 × 16

V = 50.26544

Problem 9

Reason:

The height of the cylinder is 2.5 ft. It's misleading because the cylinder is tipped onto its side, so it appears that 4 ft is the height. The height of any cylinder is always perpendicular to the circular base. It might help to rotate the paper so that the circular base is horizontal.

Problem 10

Reason:

The diameter of the base is 4 feet, which divides in half to 2 feet and it's the radius of the circle.

Area = pi*(radius)^2 = pi(2)^2 = 4pi

So the area expression should be either pi(2^2) or pi(4) or 4pi

Problem 11

Reason:

V = pi*r^2*h

V = 3.14*2^2*2.5

V = 31.4 cubic feet

This volume is approximate since pi = 3.14 is approximate.

squares, rhombus, rectangles

(23*2)-12=x     x=34

step-by-step explanation: