Answer:
93
Step-by-step explanation:
<u><em>Add all of the numbers and divide them by the number of numbers there are.
</em></u><em>Hope this helped ·ω·</em>
The first triangle you do 1/2 of 9 x 18 then the second one is 1/2 of 9 x 9 and then you add the two.
Consider the width as x.
Width = x
Length = 3x-4
2(3x-4)+2(x) = 64
6x-8+2x = 64
8x-8 = 64
8x = 72
x = 9
Width = 9 meters
Length = 23 meters