The surface area of the top surface of the water in a circular swimming pool is about 206 square feet. Estimate the radius of the pool, to the nearest foot.

Question

unklerhaukus · Answer

$$A=\pi R^2$$
$$\sqrt{\frac{A}{\pi}}=R$$

anonymous · Answer

so do you take 260/ 3.14?

unklerhaukus · Answer

260/ 3.14~86

now the square root of that, is a bit more than the square root of 81 which is nine

anonymous · Answer

there is no answer of 9 gosh i dont get this at all

unklerhaukus · Answer

ops the area is 206, not 260

anonymous · Answer

ooops

unklerhaukus · Answer

(206/3)~68.7
the square root of that is a bit more than the square root of 64 ie 8

unklerhaukus · Answer

so the pool has a radius of a little bit more than  8ft

anonymous · Answer

ty:)

anonymous · Answer

Estimate the square root to the nearest integer. of 25

anonymous · Answer

thats another one im stuck on