Answer:
Explanation:
for the first one, you would do 20x12 to get the area of the parallelogram. you then find the area of the triangle which is 6x4/2.
to find the area of the semicircle, you do πr^2, so πx4 squared, and then divide it by 2. add the area of the semicircle and the triangle, and subtract it from the area of the parallelogram
hope that helps