Question

Please help! Worth 60 points for a super rapid reply right now-MN is the midsegment of Trapezoid ABCD. What is the length of AB?

Answer 1

c) 27.9

Explanation:

Since MN is the midsegment ,

MN = (AB + CD)/2

21.1 = (AB + 14.3)/2

21.1*2 = AB + 14.2

AB = 42.2 - 14.2

AB = 27.9

Answer 2

C

Explanation:

the midsegment is equal to half the sum of the parallel bases, that is

`(1)/(2)` (AB + CD) = MN ( substitute values )

`(1)/(2)` (AB + 14.3) = 21.1 ( multiply both sides by 2 to clear the fraction )

AB + 14.3 = 42.2 ( subtract 14.3 from both sides )

AB = 27.9 cm