What is the area of the triangle on the bottom base? We have 9 km and then in the middle the length we have 8 km so what is the area?
To find the area of the triangle on the bottom base, you need to use the formula for the area of a triangle, which is A = 1/2 * base * height. In this case, the base is 9 km and the height is 8 km.
A = 1/2 * 9 km * 8 km
A = 36 square kilometers
So, the area of the triangle on the bottom base is 36 square kilometers.