Question

Esther and Jim plan to + a pond to their property. The area of the pond is 11 square meters.
What is the radius?

remember, a= πr² . Use π = 22/7

A √3
B √7/2
C 3
D 7/2

Answer 1

The answer is B :))))

Answer 2

Answer:

The correct option is B) $radius= \sqrt{\frac{7}{2}}$

Step-by-step explanation:

The area of the pond is 11 square meters.

Also,the given area is $a=\pi r^{2}$  where $\pi = \frac{22}{7}$

Put the value of area and π in provided formula,

$a=\pi r^{2}$

$11=\frac{22}{7} r^{2}$

Multiply both the sides by 7,

$7\times 11=7\times \frac{22}{7} r^{2}$

$77=22\times r^{2}$

Divide both the sides by 22,

$\frac{77}{22}=r^{2}$

simplify the above

$\frac{7}{2}=r^{2}$

Take square root on above expression

$\sqrt{\frac{7}{2}} = r$

Hence, $r= \sqrt{\frac{7}{2}}$

Therefore, the correct option is B) $radius= \sqrt{\frac{7}{2}}$