Question

11) V = tr2h solve for r2​

Answer 1

`r^(2)=(V)/(\pi h)`

Explanation:

To solve an equation for one of its variables do that:

1. Underline the variable
2. Separate it one side and the other terms on the other side
3. Make its coefficient equal to 1

Let us use these steps to solve our question

∵ V = πr²h

→ Underline r²

∴ V = πr²h

→ Take π and h to the other side by dividing both sides by πh

∵
`(V)/(\pi h)=(\pi r^(2)h)/(\pi h)`

∴
`(V)/(\pi h)=r^(2)`

→ The coefficient of r² is 1, so switch the two sides

∴
`r^(2)=(V)/(\pi h)`