Question

Please solve this question for a

Answer 1

Answer:

$a = \frac{8A}{\pi {r}^{2} } + 1$

Step-by-step explanation:

$A = \frac{1}{8} \pi {r}^{2} (a - 1)$

First of all multiply through by 8 to eliminate the fraction

That's

$8A = 8 \times \frac{1}{8} \pi {r}^{2} (a - 1) \\8 A = \pi {r}^{2} (a - 1)$

Divide both sides by πr²

$\frac{8A}{\pi {r}^{2} } = \frac{\pi {r}^{2}(a - 1) }{\pi {r}^{2} } \\ a - 1 = \frac{8A}{\pi {r}^{2} }$

Move 1 to the other side of the equation to make a stand alone

We have the final answer as

$a = \frac{8A}{\pi {r}^{2} } + 1$

Hope this helps you

Answer 2

Answer:

a = (8A)/(\pi r^(2))+1

Step-by-step explanation: