# In a right- angled triangle, one side is 8.3cm and another is 7.7. How do you find the perimeter of the triangle?

##### 1 Answer

Mar 26, 2018

#### Answer:

Two cases:

#### Explanation:

I see two cases in the following problem.

**CASE 1: FINDING THE HYPOTENUSE**

Let's say that you need to find the hypotenuse

Using Pythagoras' theorem, we got:

And so,

Therefore, the perimeter will be

**CASE 2: FINDING THE OTHER LEG**

If the hypotenuse is already given, in this case,

Using Pythagoras',

Substitute in given values,

And so, the perimeter here will be