Answer:
17 cm
Explanation:
Since this is a right triangle, we can use the Pythagorean Theorem.

where a and b are the legs and c is the hypotenuse.
In this triangle, 8 cm and 15 cm are the legs, because they form the right angle. The hypotenuse is unknown.
a= 8
b= 15

Solve the exponents on the left side of the equation.
8^2= 8*8= 64

15^2= 15*15= 225

Add 64 and 225

c is being squared. We want to get c by itself, so we must perform the inverse. The inverse would be taking the square root.
Take the square root of both sides.



c= 17 cm
The length of the hypotenuse is 17 centimeters.