Question

Solve the following: The perimeter of a rectangular plank is 120 cm. If the length is 40 cm, find its breadth and surface area of the plank.

Answer 1

Answer:

Step-by-step explanation:

Perimeter= 120cm=2(Length+width);

120=2(40+w);

60=40+w;

Width=60-40=20cm;

Surface area=length*width;

=40*20;

Surface area=80cm^2