Answer:
1063 cm^2
Explanation:
notice you have 4 triangles. Take advantage of that!
the formula for a triangle:
the triangles on the left side are the same so
2 * (
) = 696.01 cm^2
I multiplied it by 2 because there are two corresponding triangles.
on the right side it's the same:
2 *
= 366.75 cm^2
Now add those values: 696.01 + 366.75 = 1,062.76 cm^2
make sure you round to the nearest square centimetre: then the answer is 1063 cm^2.
You could also use the area of a rhombus.