The area of a parallelogram follows the following formula
Where b = 9cm and h = 7cm.
![A=9\operatorname{cm}*7\operatorname{cm}=63(cm)^2]()
The area of the parallelogram is 63 square centimeters.
The area of a triangle is
Where b = 10cm and h = 6.8 cm.
![A=\frac{10\operatorname{cm}*6.8\operatorname{cm}}{2}=34(cm)^2_{}]()
The area of the triangle is 34 square centimeters.
The area of a trapezoid is
Where B = 15cm, b = 13cm, and h = 6cm.
![A=\frac{(15\operatorname{cm}+13\operatorname{cm})6\operatorname{cm}}{2}=84(cm)^2]()
The area of the trapezoid is 84 square centimeters.