Answer: How to find the area of a trapezoid is that you multiply and add (5*8) + (11*9) if done right you should get 40 + 99 which is 139.
Step-by-step explanation:
Another tip to find the area is to follow the formula A = bh.
Answer:
6
perimeter of the given triangle = 16 + slant (10) + slant (10)
= 36 units
(see image below)