The area of composite figure is 100 cm². Option B is correct.
Step-by-step explanation:
In the composite figure we have a rectangle and a triangle. The length of the rectangle is 14 cm and width is 5 cm.
The area of a rectangle is
The height of the triangle is 5 cm and the base of the triangle is
The area of a triangle is
The area of composite figure is
Therefore the area of composite figure is 100 cm². Option B is correct.