Answer:
b.
Step-by-step explanation:
As you can see inthe picture, the two diagonals divide the figure in four equal triangles. The, then area of the figure will be the area of each triangle multiplied by 4.
Area of the triangle = \(\frac{b*h}{2}\) where b = 74/2 = 37m and h = 21/2 = 10.5m.
Then, \(A = \frac{37*10.5}{2} = 194.25 m^2\) so, the total area is \(194.25(4) = 777 m^2\).
