Question

5. . Find the surface area of each object to the a nearest tenth of a square unit. d=0.003 m b) су fa a) d=2.5 cm 16 cm re wooden rod 16 m flag pole

Answer 1

The flag pole is a cylinder, the surface area of the cylinder is given by:

$SA=2\pi r^2+2\pi rh$

Where:

$\begin{gathered} r=\frac{d}{2}=\frac{0.003}{2}=0.0015m \\ h=16m \end{gathered}$

Therefore:

$\begin{gathered} SA=2\pi\cdot(0.0015)^2+2\pi(0.0015)(16) \\ SA\approx0.2m^2 \end{gathered}$

Answer:

0.2 m²