Answer:
The answer is choice C (7).
Explanation:
We are being told to find the missing length of the triangle. Since this triangle is a right triangle (indicated by the right angle), we can use the pythagorean theorem to find the missing length. This theorem's formula is:
"a^2 + b^2 = c^2"
a = one of the legs of the triangle
b = one of the legs of the triangle too
c = the longest side of the triangle (in this case "25")
We can now plug in the values into the formula and solve.
1) a^2 + 24^2 = 25^2
2) a^2 + 576 = 625
3) a^2 = 49
4) a = 7
Hence, the missing length is 7. If you have any concerns or questions, please let me know!! Have a great rest of your day!! :)