Question

Your company is going to make frames as part of a new product they are launching.The frame will be cut out of a piece of steel and to keep the weight down,the final area should be 28 cm squared. The inside of the frame has to be 11 cm by 6 cm.What should be the width of the metal be?

Answer 1

(11+2w)(6+2w) - 11*6 = 28

now just solve for w

Answer 2

Why twice the width i.e 2wis multiplied with length and breadth