Can you post it with a bigger picture? I can’t see it sorry :(
Answer:
19
Step-by-step explanation:
45-26=19
The length of the midsegment of an isosceles trapezoid is the sum of the two bases, divided by 2. So this means -
(base 1+base2) / 2
(12+20) / 2
32/2
Length of midsegment = 16