Question

Given that
$v = \pi {r}^{2} h$
Make h the subject of the formula. Evaluate h when
$\pi = 22 \div 7$
$r = 7$
$v = 616$


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Answer 1

Answer:

h = 4

Step-by-step explanation:

v = πr²h

To make h the subject divide both sides by πr²

So we have

$h = \frac{v}{\pi {r}^{2} }$

when

π = 22/7

r = 7

v = 616

We have h as

$h = \frac{616}{ \frac{22}{7} \times {7}^{2} } = \frac{616}{ \frac{22}{7} \times 49}$

$h = \frac{616}{22 \times 7} = \frac{616}{154}$

h = 4

Hope this helps you