To find the area we can find the area of each triangle and then add them so for the one in the top is:
[tex]A_1=\frac{14\cdot4}{2}=28[/tex]
Now for the two tiangles in the buttom is:
[tex]A_2=A_3=\frac{7\cdot9}{2}=31.5[/tex]
and the total area will be:
[tex]\begin{gathered} A=A_1+A_2+A_3 \\ A=28+31.5+31.5 \\ A=91 \end{gathered}[/tex]
So the total area is 91 square cm
