Geometry
posted by Cassie .
A square has diagonal length 13 m. What is the side length of the square to the nearest centimeter?

Pitagorin teorem :
diagonal = sqrt ( a ^ 2 + a ^ 2 )
diagonal = sqrt ( 2 * a ^ 2 )
diagonal = a * sqrt ( 2 )
13 = a * sqrt ( 2 ) Divide both sides by aqrt ( 2 )
13 / sqrt ( 2 ) = a
13 / 1.41421 = a
9.19241131 = a
a = 9.19241131 m
1 m = 100 cm
a = 9.19241131 m = 919.241131 cm
a = 919 cm to the nearest centimeter?