Answer:
Step-by-step explanation:
Pythagorean theorum: 5^2 +s^2 = 15^2 so 25 + s^2 =225
s^2 =200 so s = square root of 200 which is 10 times the square root of 2. So the first answer is right
Check the picture below.
Make sure your calculator is in Degree mode.
Answer:
C. 400
Step-by-step explanation:

Answer: 12. D) 13. A) 14. C) You're Welcome!