Question

An isosceles trapezoid has a perimeter of 25.9 inches. Its shorter base measures 1.7 inches and its longer base measures 2.8 inches. The two remaining sides have the same length; what is that length?

Answer 1

10.7 in.

Explanation:

perimeter = base1 + base2 + side1 + side2

side1 = side2 = side

side1 + side2 = 2 * side

25.9 in. = 1.7 in. + 2.8 in. + 2 * side

2 * side = 21.4 in.

side = 10.7 in.