Angel Sum Property of Triangle
Three angles of a triangle are formed at each vertex by a pair of adjacent sides. The sum of measures of these three angles of any triangle is invariably equal to the straight angle, also expressed as 180°, π radians, two right angles, or a half-turn.
To teach sum of 3 angle of triangle is 180. This manipulative provided with cutout of angles from triangle. Provided with magnet at back to demonstrate on magnetic board.
Plesae enter your contact number.
Plesae fill all fields.