Answer: 30
Step-by-step explanation:
If we were to draw diagonal BD, then we would create two congruent triangles, and we could find the area of each using the formula
.
However, since there are two triangles, we can double this, giving us
.
So, the area is 
Answer:
8/a^2
Step-by-step explanation:
The answer i got when i worked it out with my math teacher was C
Answer:
The answer is C. 14.5 miles