Step 1:

The values of right angled triangle are $\"\"$ and $\"\"$ .

Draw the right angled triangle.

$\"\"$

Observe the diagram.

$\"\"$ , $\"\"$ and $\"\"$ .

In a triangle sum of three angles is $\"\"$ .

$\"\"$

$\"\"$ .

Step 2:

Consider $\"\"$

$\"\"$ .

$\"\"$

Step 3:

Pythagoras theorem:

In a right angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

$\"\"$ .

$\"\"$

The angles of triangle are $\"\"$ , $\"\"$ and $\"\"$ .

The sides of triangle are $\"\"$ , $\"\"$ and $\"\"$ .

Solution:

The angles of triangle are $\"\"$ , $\"\"$ and $\"\"$ .

The sides of triangle are $\"\"$ , $\"\"$ and $\"\"$ .