Question
Sephora draws a square with an area of 289 square centimeters. What is the length of one side of the square?
Answers
algaeeeee
is it 18 cm?
algaeeeee
16 cm
17 cm
15 cm
18 cm
those r the choices
17 cm
15 cm
18 cm
those r the choices
Damon
ah,on my calculator 18*18 = 324
Damon
let me see, 7 times 7 ends in a nine.
henry2,
A = L*W.
W = L. So replace W with L:
A = L*L = L^2
289 = L^2
Take sq. root of both sides:
L = 17 cm.
W = L. So replace W with L:
A = L*L = L^2
289 = L^2
Take sq. root of both sides:
L = 17 cm.