contestada

a rolling pin is shaped like a cylinder with a diameter of 2 inches and a height of 10 inches . how many square inches of space does the rolling pin come in contact with after one complete roll?

Respuesta :

calculista

Answer:

62.8 square inches

Step-by-step explanation:

we know that

To find out how many square inches of space the rolling pin comes in contact with after one complete roll, determine the lateral area of the rolling pin

The lateral area of a cylinder is given by the formula

[tex]LA=\pi Dh[/tex]

we have

[tex]D=2\ in\\h=10\ in\\\pi=3.14[/tex]

substitute

[tex]LA=3.14(2)(10)=62.8\ in^2[/tex]