Question

What is the total surface area of a right circular cylinder with base radius 7cm and height 12cm.

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Answer 1

226
`\pi` or 835.664

Explanation:

Surface area of a right cylinder= 2πrh+2πr^2

=2π7✖️12+2π49

=226π

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Answer 2

Using 3.14 for pi

835.24 cm^2

Using the pi button for pi

835.6636459 cm^2

Explanation:

The surface area of a cylinder is given by

SA = 2 pi r^2 + 2 pi r h

= 2 * pi ( 7)^2 + 2 pi ( 7) * 12

= 98 pi + 168 pi

=266 pi

Using 3.14 for pi

835.24 cm^2

Using the pi button for pi

835.6636459 cm^2