Question

S = 2 rh i don’t understand it

Answer 1

Step-by-step explanation:

s = 2pirh

s ÷ 2 = pirh

s ÷ 2pi = rh

s ÷ 2pih = r

Answer 2

You just need to divide both sides by $2\pi h$: the equation becomes

$s = 2\pi rh \iff \dfrac{s}{2\pi h}=\dfrac{2\pi rh}{2 \pi h} \iff \dfrac{s}{2\pi h}=r$