Answer:
First one can
Second one can not
Step-by-step explanation:
13² = 5² + 12²
169 = 25 + 144
169 = 169 is a true statement
15² = 11² + 12²
225 = 121 + 144
225 = 265 is a false statement
So, not a right angle triangle
Answer:
c= 17
Step-by-step explanation:
c² = a² + b²
c= ?
a = 8
b= 15
c² = (8)² + (15)²
c² = 64 + 225
c² = 289

I believe 3-4 ships took part in the battle
Answer: 22.7°
Steps:
180 - 157.3 = 22.7