Question

Find the circumference and area of a circle with radius 15 feet. A = E = ) Find the slume of the following shapes: A horylar Bey (ii) Cylinder

Answer 1

• Question 6.

Let's find the volume of the following shapes.

(i) We are to find the volume of the rectangular box.

Given:

Height, h = 9 cm

Width, w = 4 cm

Length, l = 5 cm

To find the volume, apply the formula:

$V=w\ast h\ast l$

Input values into the formula:

$\begin{gathered} V=4\ast9\ast5 \\ \\ \text{ V = 180 cm}^3 \end{gathered}$

(ii) We are to find the volume of the cylinder.

Given:

Radius, r = 3 cm

Height, h = 7 cm

To find the volume of the cylinder, apply the formula:

$V=\pi r^2h$

Input values into the formula:

$\begin{gathered} V=\pi\ast3^2\ast7 \\ \\ V=\pi\ast9\ast7 \\ \\ V=\pi\ast63 \\ \\ ^{} \\ \text{ V = 197.9 cm}^3 \end{gathered}$

ANSWER:

$\begin{gathered} \text{ (i) V = 180 cm}^3 \\ \\ \text{ (i}i)V=197.9cm^3 \end{gathered}$