Answer:
C. 15 cm
Step-by-step explanation:
The equation for finding the hypotenuse is A squared + B squared = C squared.
Lets use 9 as A and 12 as B.
9 times 9 is 81. 12 times 12 is 144.
81 + 144 = 225.
The square root of 225 is 15.
The answer is C) 15 cm
