Basic properties of lines and planes: 1. One and only one line passes through two distinct points. 2. Infinite number of lines pass through a given point. These lines are called concurrent lines. 3....
1. 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...