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Sum of 3 angles of triangle

Sum of 3 angles of triangle

Product Code : JA-MLK-4478

The Sum of 3 angles of triangle set (SKU JA-MLK-4478) is a magnetic classroom demonstration for proving the angle sum property of a triangle. It has 4 parts, which the teacher arranges on a magnetic board so that the three angles of the triangle are brought together at one point. Placed side by side, the angles form a straight line, showing that they add up to 180 degrees. The magnetic parts stay in place while the class discusses each step. JaincoLab makes this demonstration set for middle school maths labs.

Specifications

The set has 4 magnetic parts for demonstration on a magnetic board; the size and colours are confirmed on the quotation.

ProductSum of 3 angles of triangle
SKUJA-MLK-4478
Parts4
TypeMagnetic, classroom demonstration
PrincipleSum of the 3 angles of a triangle = 180 degrees

Proving the angle sum of a triangle

Bringing the three angles of a triangle together on a straight line gives pupils a visual proof they can repeat, which makes the 180 degree rule easy to remember.

  • Demonstrating that the angles of a triangle add to 180 degrees
  • Finding a missing angle in a triangle
  • Linking the angle sum to angles on a straight line
  • Introducing the exterior angle property

Scope of supply

The listing covers one magnetic Sum of 3 angles of triangle set of 4 parts. Accessories, spares and quantities are confirmed on the quotation.

Packing, MOQ and lead time

The quotation confirms the MOQ, the lead time and the packing for the quantity and destination you give. JaincoLab handles one-school orders as well as bulk and tender supply for school networks and education departments.

JaincoLab specialises in turnkey laboratory projects funded by education ministries, the World Bank and United Nations programmes, manufacturing and exporting the equipment and executing these projects successfully in many countries. Tender bidders can send their requirement list through our tenders page for a line-by-line quotation.

Frequently asked questions

What does the set prove?
That the three angles of a triangle add up to 180 degrees.

How many parts are there?
The set has 4 parts.

Is it magnetic?
Yes, it is designed for classroom demonstration on a magnetic board.

What should I send for a quotation?
Send the SKU JA-MLK-4478, the quantity and the delivery destination.

Related products

Browse the complete maths lab kits range for more classroom and student items.

Request a quote

For a price on the Sum of 3 angles of triangle, email [email protected] or use the contact page, quoting SKU JA-MLK-4478, the quantity and the destination.

Published: September 2026 | Last Updated: September 2026

   
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Office Address

Jain Scientific Suppliers
2475-84, Hargolal Road,
Ambala Cantt, Haryana, India

[email protected]

+91-85699-09696

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