A cylinder and a cone have the same volume. The cylinder has a radius of 2inches and a height of 3 inches. the cone has a radius of 3 inches. what is the height of the cone? show work.

Volume  of a cone  and cylinder

The height of the cone is 4 inches

Step-by-step explanation:

The volume of cylinder =  

The volume of cone =

Value of = 3.14

In case of cylinder the value of radius r = 2 inches  and height = 3 inches                                        

Therefore, the volume of the cylinder is given by:

V1 = =   ---------------------------( 1 )

⇒ V1= 3.14 ×2 ×2 ×3

⇒V1 = 3.14 ×12

⇒V1 =37.68 cubic inch

Volume of cone V2 = --------------------------------------( 2)

V2 = 1/3 ×3.14 ×3 ×3 ×h as r =3 inches

Also, given that the volume of cylinder V1 is equal to volume of cone V2                                                    V1 = V2

So equating equation (1) with equation (2 )

So

1/3 ×3.14 ×3 ×3 ×h = 37.68

⇒3.14 ×3 ×h = 37.68

⇒h = 37.68 / ( 3 × 3.14)

⇒ h = 4

Hence, the height of the cone is 4 inches

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step-by-step explanation:

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared