Answer:
(a) 72 cm^2
(b) 9 cm^2
(c) 9 cm^2
(d) 54 cm^2
Explanation:
(a):
Area of a rectangle = Length * Width
12 * 6 = 72 cm^2
(b):
Area of a triangle = (Length * Width) / 2
(3 * 6) / 2 = 9 cm^2
(c):
Triangle B = Triangle A
9 cm^2
(d):
The parallelogram is the remaining area of the rectangle when the two triangles are removed. Therefore, using the answers from the previous three questions:
72 - 9 - 9 = 54 cm^2