Question

find the length of the rectangle if the perimeter is 100 cm and breadth is 20 CM​

Answer 1

Answer:

Length = 30cm

Step-by-step explanation:

Using formula

perimeter=2(l+b)

100 = 2(x+20)

100 = 2x + 40

100 - 40 = 2x

60 = 2x

x = 60 ÷ 2 =30

∴x = 30cm

∴Length is 30cm

Hope it helps!