Answer:
C) 36 square kilometers
Step-by-step explanation:
The area of a triangle can be represented as
A = bh/2 where:
b is the base of the triangle
h is the height of the triangle
In a right triangle, this is no different.
By substituting values, you can see that
the base (or bottom leg) is 8 km
the height (or side leg) is 9 km
So substitute these values into the formula
A = bh/2
A = (8 * 9)/2
A = 72/2
A = 36 km²
