Find the length of the hypotenuse of a right triangle with legs of 9 cm and 12 cm.
A. 8 cm
B. 21 cm
C. 15 cm
D. 225 cm
Is the answer C?
Thank you
Yes your answer is correct. 9^2 * 12^2 = 225. 225 squared is 15.
Thank you for helping me :)
To find the length of the hypotenuse of a right triangle, you can use the Pythagorean theorem, which states that the square of the hypotenuse is equal to the sum of the squares of the two legs.
In this case, we have the two legs of the right triangle, which are 9 cm and 12 cm. To find the length of the hypotenuse, we square the length of each leg and add them together:
(9 cm)^2 + (12 cm)^2 = 81 cm^2 + 144 cm^2 = 225 cm^2.
Now, to get the length of the hypotenuse, we need to take the square root of 225 cm^2:
√225 cm^2 = 15 cm.
Therefore, the length of the hypotenuse is 15 cm, which is option C.
So, your answer is correct. Well done!