Question

A sheet of paper measures 30 cm by 20 cm. A strin 4 cm wide is cut from it all around. Find the area of the remaining sheet and also the area of strip cut out.
​

Answer 1

Step-by-step explanation:

area of original sheet of paper=30×20=600cm^2

For remaining sheet of paper

L=30-4×2=30-8=22cm

B=20-4×2=20-8=12cm

Area=22×12=264cm^2

area of strip cut out=area of original sheet of paper- area of remaining sheet of paper

=600-264=336cm^2