Question

The formula for the surface area of a cylinder with radius r and height h is at times twice the product of the

radius and height plus twice the product of t and the square of the radius. Translate this verbal expression into
an algebraic expression.

Answer 1

`2\pi \: rh + 2\pi {r}^(2) = 2(t * {r}^(2) )`

Explanation:

The TSA of the cylinder

`2\pi \: rh + 2\pi {r}^(2)`

In Mathematics, 'is' is =

Twice means 2( )

Product means ×

So we have

`2\pi \: rh + 2\pi {r}^(2) = 2(t * {r}^(2) )`

as the answer.