The polygon consist of two rectangles and a triangle.
The dimensions of rectangle are,
Length, L = 10 cm
Width, W = 4 cm
Second rectangle,
Length l = 7 cm
Width w = 2 cm.
The dimension of triangle is, base b = 7 cm and height h = 2 cm.
Determine the area of polygon by addition of each area combined in the polygon.
[tex]\begin{gathered} A=10\cdot4+7\cdot2+\frac{1}{2}\cdot2\cdot7 \\ =40+14+7 \\ =61 \end{gathered}[/tex]
So area of polygon is 61 sq. cm. Option B is correct.
