Answer:
D. 39
Step-by-step explanation:
you use the pythagorean theorem which is
if you look at the triangle we can see that we have to find the length of the hypotenuse (BC).
so your equation will look like this:
Solving For The Length Of BC
1.
(solve for
)
2. C= 225+1296 (add)
3. C= 1521 (find the square root of 1521)
4.
Therefore, 39 is your answer
Hope this helps!