01. In an isosceles right angled triangle , both the acute angles are equal to 45°
2. The hypotenuse = √2× perpendicular side.
3. For a right angled triangle of given perimeter, an isosceles right angled triangle has maximum area.
4. A square is broken into two isosceles right angled triangles by its diagonal.
5. Ratio of sides : 1:1 :√2.
Right angled triangle with angles 30°-60°-90°
The side opposite to 30° = 1/2×hypotenuse
The side opposite to 60° = √3/2 × hypotenuse
In an 30°-60°-90° triangle , tge measure of the sides are in the ratio: 1:√3:2
One half of an equilateral triangle is a 30°-60°-90° triangle.
