Question

A rectangle has two pairs of sides of equal length.Explain how you can find the unknown length of two sides when the length of one side is 4 units, and the perimeter is 14 units.

Answer 1

multiply 4x2 since the opposite side is the same length, and then subtract the answer (8) from the perimeter (14 units) and you’ll get 6. and then divide 6 into 2 since there is 2 more congruent sides, and you will get 3.