Answer:
Step-by-step explanation:
Ok so first we need to look and rule out the ones that are not correct like 9m and 5m. ok now we ruled out 2 of the wrong ones and now we have 90m and it looks like a 45m. now we multiply 5 x 2 x 9 which equals 90. so the answer is 90.
Hope it helps!
45
with triangles you have to do base times height and divide by 2 so 5*9*2=90 and 90 divided by 2 is 45
