Find the lengh of a hypotenuse of a right triangle with legs of 9cm and 12 cm please

ANSWER

The length of the hypotenuse is 15 cm

EXPLANATION

Use Pythagoras Theorem.

The theorem says that, the square of the length of the  of the hypotenuse of a right angle triangle is equal to the sum of the squares of the two shorter legs.

See diagram

Taking square root of both sides gives;

Therefore the length of the hypotenuse is 15 cm

15 cm

Step-by-step explanation:

We are given the lengths of legs (perpendicular and the base) of a right angles triangle to be 9 cm and 12 cm.

So with help of the given lengths, we can find the length of the hypotenuse using the Pythagoras Theorem.

where is the hypotenuse.

Substituting the given values in this formula to get:

Therefore, the length of the hypotenuse is 15 cm.

1/800 is the right answer