Triangle and its properties

By Azam Khan

7-B

ANGLE SUM PROPERTY The sum of the angles in a

triangle is always equal to 180.This property is called the angle sum property of a triangle.

EXTERIOR ANGLE PROPERTY Exterior angle is equal to the sum of the opposite interior angles.

TRIANGLE INEQUALITY PROPERTY

The sum of any two sides is always bigger than the third side.

42

47

21

47+21=68>4221+42=63>4747+42=89>21

PYTHAGORAS THEOREM In a right angled triangle, the square of the longest side is equal to the sum of the squares of the other two sides.

The End