Question

the perimetre of a rectangular piece of glass is 50 cm . find its area, its lenght is 14 cm​

Answer 1

Answer:

Perimeter of rectangle = 50cm

2×(L+B) = 50

L+B = 50÷2 = 25

But L=14cm.

So,

14cm + B = 25cm

B = 25cm-14cm

B = 11cm.

Now,

Area of rectangle = L×B = 14cm×11cm = 154cm^2.