Find two consecutive whole numbers that the square of 13 lies between ?

1 Answer
Apr 12, 2018

3 and 4

Explanation:

3 and 4 are consecutive (4 comes right after 3)

Find the perfect squares (1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, etc.) that are closest to 13.

#3^2=9#

#4^2=16#

#3=sqrt9#

#4=sqrt16#

#sqrt13# lies between #sqrt9# and #sqrt16#, so it must be between 3 and 4