# Find the Length of the Hypotenuse of a Right Triangle with legs of 9 cm and 12 cm.

We will use the Pythagoras theorem to solve this.

## Answer: The length of the hypotenuse of a right triangle with legs of 9 cm and 12 cm is 15 cm.

Let us solve this step by step.

**Explanation:**

Given that, base = 9 cm and altitude = 12 cm.

In a right triangle we have, (Hypotenuse)^{2} = (Base)^{2} + (Altitude)^{2}

(Hypotenuse)^{2} = (9)^{2} + (12)^{2}

(Hypotenuse)^{2} = 81 + 144

(Hypotenuse)^{2} = 225

(Hypotenuse)^{2} = (15)^{2}

Hypotenuse = 15 cm.