Question

find the length of each side of the square when perimeter is as given below.
(a) 42 dm​

Answer 1

Step-by-step explanation:

let the length of square of each side be x

perimeter of square = 4 X side

=4 X x

=4x

therefore 4x=42

x=42/4

x=10.5

hence lenth of each side is 10.5 cm

Answer 2

Perimeter=42dm

first we will convert DM to M

therefore-42×10=420m

perimeter=4×X

4x=420

x=420/4

x=105