Question

find the length of square whe breadth is 7 m amd perimeter is 42 square

Answer 1

first of all it should be a rectangle
42=2(l+7)
21=l+7
l=21-7
l=14

Answer 2

The question is wrong but

Breadth = 7m
Length be x
Perimeter = 42

42= 2(x+7)
42/2 = x + 7
21 = x+ 7
21-7 = x
14 = x

x = 14m

LENGTH= 14m

Area = 14× 7
= 98 meter square



HOPE THIS HELPS