contestada

Beth is covering a cylinder can't create a pencil container for a test. The cat is 15 cm tall and has a diameter of 7 cm. How much paper what she need to cover only the sides of the can.

Please help...thx

Respuesta :

MrRoyal

Answer:

[tex]A = 329.7[/tex]

Step-by-step explanation:

Given

[tex]h = 15[/tex] --- height

[tex]d = 7[/tex] --- diameter

Required

Paper needed to cover the sides

To do this, we simply calculate the surface area of the cylinder (without considering the top and bottom)

This is calculated as:

[tex]A = 2\pi rh[/tex]

Where

[tex]r = \frac{d}{2}[/tex]

[tex]r = \frac{7}{2}= 3.5[/tex]

The formula becomes

[tex]A = 2 * 3.14 *3.5 *15[/tex]

This gives:

[tex]A = 329.7[/tex]

Otras preguntas