Mind Map

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

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