Answer:
D) 70 meters²
Step-by-step explanation:
The area of a triangle is able to be found by 1/2*b*h.
The base is 9 - 2 = 7, 7*2 = 14 meters.
The height is 7 - 2 = 5, 5*2 = 10 meters.
Plugging those into the equation gives us 1/2 * 14 * 10.
That is 140/2 = 70 meters².
(The lengths is multiplied by 2 because the key says that each grid is 2 meters long)
