Question

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

Answer 1

Area of rectangle =120 sq cm

breadth = 8 cm

Area of rectangle = l × b

120 = l × 8
15 = l

length = 15cm

Answer 2

Let the length be l,
given that breadth = 8cm,
and area = 120 cm²,

We know that area of a rectangle = length*breadth,

Then according to this formula we can write this,

l * 8 cm = 120 cm²
=> l = 120/8 cm,
=> l = 15 cm,

Therefore the length of the rectangle = 15 cm,

Hope you understand !!