Answer:
36.575
Step-by-step explanation:
you need to find line ab you can do 
for the triangle and get the line you also need to get the squar root of it as it is still squared then devide by 2 to get the rades then times that by pi and there you go you have the area also sorry for spelling I love math not English
If it is a triangle h is height and b is base.
For the first one I believe that the numbers are both odd and I am not sure about the second one sorry
