Question

find the lenght of a rectangle whose area is 120 sq cm and breadth is 8 cm

Answer 1

Area of a rectangle =2 (l+b ) 120cm=2 (l+8) 120=2l+16 120-16=2l 104=2l L=104/2 L=52

Answer 2

Area = 120sq m²
Breadth = 8 cm
Length = 2(l+8)=120 sq m²
               2l+16=120
               120 - 16 = 104
               120-104=52 cm²
 CHECK
Area=2(l+b)
        =2(52+8)
        =104+16=120 sq m²