Question

If S=4(22/7)r2, find the positive of r when S = 616​

Answer 1

Answer:

128424458485181511115²6922299²91¹²929²92

Answer 2

Answer:

The positive value of r is 0.079

Step-by-step explanation:

Given -

$S=4(\frac{22}{7} )r\times 2$

$S = 616$

To find -

The positive value of r

Solution -

The given equation,

$S=4(\frac{22}{7} )r\times 2$

put the value of s

$2=4(\frac{22}{7} )r\times 2$

$2=8(\frac{22}{7} )r$

As we want to find the value of r shift the right part of equation to left except r.

$2 \times \frac{7}{22} \times \frac{1}{8} =r$

Divide 22 by 2 we get

$1 \times \frac{7}{11} \times \frac{1}{8} =r$

$\frac{7 \times 1}{11 \times 8} =r$

$\frac{7}{88} =r$

$r =0.079$

The positive value of r is 0.079