Constructions of Class 9
Points lying on the ⊥ bisector of the line segment joining the two points are equidistant from them.
A triangle is unique if:
➢Two sides and the included angle is given.
➢Three sides are given.
➢Two angles and the included side is given and,
➢ In a right triangle, hypotenuse and one side is given.
➢ Perimeter of a triangle is equal to sum of its three sides.
➢Altitude to a given line segment intersects the line at 90°
➢Median of a line segment bisect the given line segment.
➢Perpendicular bisector of a line segment bisects the line segment at right angles