Question

Estimate the length of one side of a square floor if the area is 820 square feet. Give the whole number that is closest to the amount.
210 ft

36 ft
91 ft
29 ft

Answer 1

if u look at the smallest number and round it to 30 then square it u get 900 so u kno that any answer bigger than that will b way off making 29 the closest answer to 820