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Angle Sum Property of Triangle Manufacturer,Supplier and Exporter in India

Product Code : ILS-MLE-10031

Indian Lab Suppliers supplies the Angle Sum Property of Triangle (Product ID: 10031) as part of its maths lab equipment range. It is a triangle with cut-outs of its interior angles for verifying the angle sum property and the exterior angle property.

Quick Answer

The three interior angle cut-outs are placed side by side along a straight edge, where they form a straight angle, so the angles of a triangle add up to 180°. With one side extended, the two interior opposite angle cut-outs fit exactly into the exterior angle, showing that an exterior angle equals the sum of the two interior opposite angles. The same exercise builds the idea of a straight angle (180°). It can also be shown on a magnetic board.

Key Specifications

Parameter	Detail
Pieces	Triangle with cut-outs of its three interior angles
Display	Can be used on a magnetic board

Where This Is Used

Used in middle school geometry for hands-on proof of triangle angle facts. Follow it with the Angle Property of Cyclic Quadrilateral (Product ID: 10030) for quadrilaterals. Browse the full Maths Lab Equipment (general) range or related Geometry products.

Frequently Asked Questions

What do the angles of a triangle add up to?
180°, which the three cut-outs show by forming a straight angle.

What is the exterior angle property?
An exterior angle equals the sum of the two interior opposite angles.

Can the teacher demonstrate it to the class?
Yes, it can be used on a magnetic board.

Related Categories

Maths Lab Equipment (general) · Geometry · Maths Lab Equipment

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