Let's find the area of the equilateral triangle first:
\(\frac{1}{2} *7.8*9\)
There are two triangles - one on each end. So we multiply our previous expression by 2.
\(\frac{1}{2} *7.8*9 * 2 \\ =7.8*9\)
Each rectangle is 75 millimeters long and 9 millimeters wide: 759 mm^2.
We have 3 rectangles each the same size so we multiply 759 by 3.
7593 = 2025
2025 + 70.2 = 2095.2
