Answer:

Step-by-step explanation:
The area of a triangle is given by:

From the diagram 
We substitute into the formula to get:

This implies that:

Answer:
is there more info? I don't think this can be solved with given numbers could you take a more zoomed out photo?
Answer:
root 50
Step-by-step explanation:
Pythagorean theorem d is the hypotenuse
Answer:
Simple Interest=PTR/100
Step-by-step explanation:
Principle(P)=$210
Time(T)=7years
Rate(R)=8%
We have,
SI= (210*7*8)/100
=(11760)/100
=117.7
hope it helps uh