Chapter 1.6, Problem 65SR

To determine

To evaluate expression

Answer to Problem 65SR

169.5 is the solution.

Explanation of Solution

Given information:

  $P=10,B=12,\mathcal{l}=5,h=6$ and $r=3$

  $2\pi rh+2\pi r^2$

Calculation:

Expression is $2\pi rh+2\pi r^2$

Substituting values,

  = $2\pi (3)(6)+2\pi {(3)}^2$

Solving,

  = $36\pi +2(9)\pi$

Multiplying,

  = $54\pi$

So,

  = $54\pi$

Put value of $\pi$ =3.14,

Hence, 169.5 is the solution.