Quandaries
and Queries 

find the radius of a circle whose area is 1256sq cm.Use pi as an appoximation for pi. 

Hi, If a circle has radius r then its area is given by
Since you have an area of 1256 sq cm you have
Take whatever approximation you are using for and calculate ^{1256}/_{}. This gives you r^{2}, so to find r take the square root of ^{1256}/_{}. Penny 

