Answer:
231.7 cm^2
Explanation:
We can find the area by adding the area of the rectangle to the area of the 2 triangles.
The rectangle is
7+7+7 by 9
21 by 9
A = length * width
A = 21*9
A = 189
The triangles are identical so we find the area of one of them and multiply by 2
The base is 7 and the height is 6.1
A = 1/2 b*h
but since we have 2 of them
2A = 2*1/2 b*h
2A = b*h
2A = (7* 6.1)
= 42.7
Add the rectangles area to the area of the two triangles
189 + 42.7
231.7 cm^2