Question

Rearrange the formula A = Θr2 2 for Θ.

Answer 1

Θ = 2A/ r2 ... that's if your on usa test prep

Answer 2

`\theta=(2A)/(r^2)`

Explanation:

The given formula is

`A=(1)/(2)\theta r^2`

We need to rearrange the given formula for θ.

Multiply both sides by 2.

`A* 2=(1)/(2)\theta r^2* 2`

Cancel out common factors.

`2A=\theta r^2`

Divide both sides by r².

`(2A)/(r^2)=(\theta r^2)/(r^2)`

`(2A)/(r^2)=\theta`

Therefore the required formula is
`\theta=(2A)/(r^2)`.