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
![A=length\times width](/tpl/images/0353/2382/596a0.png)
![A_1=14\times 5=70](/tpl/images/0353/2382/368be.png)
The height of the triangle is 5 cm and the base of the triangle is
![14-2=12cm](/tpl/images/0353/2382/98acc.png)
The area of a triangle is
![A=\frac{1}{2}\times base \times height](/tpl/images/0353/2382/89d98.png)
![A_2=\frac{1}{2}\times 12 \times 5=30](/tpl/images/0353/2382/43189.png)
The area of composite figure is
![A=A_1+A_2=70+30=100](/tpl/images/0353/2382/67e6d.png)
Therefore the area of composite figure is 100 cm². Option B is correct.