Answer:
C
Step-by-step explanation:
Since the triangle is right with hypotenuse h
Use Pythagoras' identity to solve for h
The square on the hypotenuse is equal to the sum of the squares on the other two sides, that is
h² = ( 5
)² + ( 5 )²
= 50 + 5 0 = 100
Take the square root of both sides
h = 
= 10 → C
