Question

the length of a rectangle is 100 centimeters and it's perimeter is greater than 400 cm write an inequality to find width of the rectangle

Answer 1

200+2w>400 and w>100.

Explanation:

The perimeter of a rectangle can be found using 2*l + 2*w = P. If the length is 100 cm then 2(100)+2w > 400. Simplified this is 200+2w>400.

You can solve for the width and you find

200+2w>400

2w>200

w>100.