Angle Sum Property of Triangle Manufacturer,Supplier and Exporter in India
Product Code : EL-MLE-1732
Jlab Export is a leading Angle Sum Property of Triangle Manufacturer,and suppliers in India
Angle Sum Property of Triangle (code EL-MLE-1732) is a magnetic classroom manipulative that shows the three angles of any triangle add up to 180°. It is made of cut-out angles from a triangle and has a magnet at the back, so the teacher can demonstrate the property on a magnetic board. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Concept | The sum of the 3 angles of a triangle is 180° — a straight angle, two right angles, π radians or a half-turn |
| Parts | Cut-out angles from a triangle |
| Magnet | At the back, for demonstration on a magnetic board |
| Quality check | Each manipulative is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-MLE-1732 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Triangle Angle Sum Manipulative Used For?
Each angle of a triangle is formed at a vertex by a pair of adjacent sides, and whatever the shape of the triangle, the three angles together always equal a straight angle. This manipulative turns the rule into separate cut-out angles that the teacher can show on a magnetic board for the whole class. It is used in school maths labs and in middle-school geometry lessons on triangles and angles.
What to Specify When Ordering
- Quantity — how many manipulatives you need, for example one per maths lab.
- Product code — EL-MLE-1732 for this Maths lab Equipments item; the Geometry range has a same-name item with its own code.
- Companion items — the quadrilateral angle manipulatives linked below can be added to the same enquiry.
Frequently Asked Questions
What does the Angle Sum Property of Triangle manipulative demonstrate?
That the three angles of a triangle add up to 180 degrees, which is the same as a straight angle, two right angles, π radians or a half-turn.
Does the angle sum rule hold for every triangle?
Yes. The sum of the three angles of any triangle is always equal to a straight angle, whether the triangle is acute, right-angled or obtuse.
How is it displayed to a class?
It has a magnet at the back, so the cut-out angles can be demonstrated on a magnetic board in front of the class.
What should I send for an export quotation?
The quantity, destination country and port or city, delivery terms (for example FOB or CIF), and any packing or tender reference.
Who manufactures this manipulative?
Jain Laboratory Instruments Pvt Ltd, known as JLab, makes it at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, an educational lab equipment manufacturer in India that was incorporated in 2017 and works from Hargolal Road, Ambala, Haryana. Its maths lab manipulatives come from its own works, not from traders, so schools, dealers and importers order them factory-direct. The company holds MSME Udyam registration UDYAM-HR-01-0003849 (manufacturing enterprise) and Importer-Exporter Code 3317504552. JLab exports worldwide and ships to buyers in every region — for example Egypt in North Africa, Botswana in Southern Africa, Portugal in Southern Europe, Hong Kong in East Asia and Congo in Central Africa. Tender buyers can see the JLab lab tenders page.
Related Angle Manipulatives
- Angle Sum Property of Triangle (Geometry range) — also cut-out angles from a triangle with a magnet at the back.
- Sum of 3 angles of triangle — a magnetic classroom demonstration set for proving the same principle, in the Maths Lab Kit range.
- Angle Sum Property of Quadrilateral (Maths lab range) — magnet-backed cut-out angles for the angle sum of a quadrilateral.
- Angle Property of Cyclic Quadrilateral (magnet-backed cut-outs) — angle cut-outs for lessons on cyclic quadrilaterals.
Find more in the Maths lab Equipments range or the full Maths Lab Equipment section.
Request a Quote
Use the Add To Cart enquiry button on this page to request a quotation, or contact JLab through the contact page with the quantity, any other maths lab items and the delivery address or port.
Last updated: 15 October 2026
