Question

If the length of a rectangle is three times its breadth and the area is 1875 sq.cm,find its perimeter

Answer 1

l=3b
area= l×b
1875= 3b×b
1875/3= b^2
625= b^2
b = 25cm
l=3(25)
l= 75cm

Answer 2

Peri= 200 cm
B= 25cm
L= 75 cm