Question

A spherical tennis ball is of diameter 7.0 cm find its volume (a) volume and part(b) its surface area.
Another request please explain with formulas. So that we can understand better?

Answer 1

Answer:

volume use 4/3 πr^3

surface area 4πr^2

Answer 2

☯️ Given :-

• Diameter of tennis ball = 7 cm
• Then , radius = 7/2

☸️ R.T.P :-

• To find the volume and
• Surface area of the ball...

⚜️ Solution :-

$volume \: of \: sphere \: = \frac{4}{3} \pi {r}^{3} [/</u><u>tex</u><u>]</u></p><p><strong>So</strong><strong>,</strong><strong> </strong><strong>by</strong><strong> </strong><strong>substituti</strong><strong>ng</strong><strong> </strong><strong>the</strong><strong> </strong><strong>values</strong><strong> </strong><strong>,</strong><strong> </strong></p><p><strong>[tex] \frac{4}{3} \times \frac{22}{7} \times 7 \times 7 \times 7$

$volume = 1437 .33 {cm}^{3}$

$surface \: area \: = 4\pi {r}^{2}$

By substituting, we get

$4 \times \frac{22}{7} \times 7 \times 7$

$surface \: area \: = 616 {cm}^{2}$

• Volume = 1437.33 cm^3
• Surface area = 616 cm ^2

I hope it helps you....✔️