Angel Sum Property of Quadrilateral
Product Code : JA-MLI-1731
The Angel Sum Property of Quadrilateral (SKU JA-MLI-1731) is a magnetic manipulative for teaching that the four angles of any quadrilateral add up to 360°. It comes with cut-outs of the angles taken from a quadrilateral, each with a magnet on the back, so the teacher can arrange them round a single point on a magnetic board and show that together they make a complete turn. JaincoLab makes this angle sum of quadrilateral model in Ambala, India for school maths labs.
Specifications
The model is a set of angle cut-outs from a quadrilateral with magnets fixed on the back for display on a magnetic board; dimensions, material and colours are not given in the listing and are confirmed on the quotation.
| Product | Angel Sum Property of Quadrilateral |
| SKU | JA-MLI-1731 |
| Contents | Cut-outs of the angles of a quadrilateral |
| Mounting | Magnet on the back of each piece |
| Display | For demonstration on a magnetic board |
| Property shown | The four angles of a quadrilateral add up to 360° |
Teaching the angle sum of a quadrilateral
The angle sum of a quadrilateral is shown by joining the four angle cut-outs at one vertex on the board, where they fill a full turn of 360° with no gap or overlap.
- Verifying that the angles of a quadrilateral add up to 360°
- Linking the result to the angle sum of two triangles formed by a diagonal
- Whole-class demonstration on a magnetic board
- Maths lab activity before students repeat it with paper cut-outs
- Revision of angle properties of polygons
Scope of supply and ordering
The listing covers one Angel Sum Property of Quadrilateral manipulative with magnetic angle cut-outs. A magnetic board is not listed as part of the item. Accessories, spares and quantities are confirmed on the quotation.
MOQ, packing and lead time depend on the order quantity and the delivery destination, and all three are confirmed on each quotation. Single classroom orders, bulk school orders and tender lots are supplied.
Frequently asked questions
What does the quadrilateral angle sum model show?
It shows that the four angles of a quadrilateral add up to 360° when the angle cut-outs are placed together round one point.
How is it displayed in class?
Each cut-out has a magnet on the back, so it is used on a magnetic board in front of the class.
Is a magnetic board included?
A board is not listed with this item; if you need one, ask for it in your enquiry and it will be confirmed on the quotation.
Which related models are available?
The Angel Sum Property of Triangle and the Angel Property of Cyclic Quadrilateral use the same magnetic cut-out method and can be quoted together.
Related products
- Angel Sum Property of Triangle
- Angel Property of Cyclic Quadrilateral
- Exterior Angle of Regular Polygon
- Jumbo Geometry Box Transparent & Magnetic
More items for the school maths lab are in the maths lab equipment range.
Request a quote
Send your requirement for the Angel Sum Property of Quadrilateral (SKU JA-MLI-1731), with quantity and delivery destination, through the JaincoLab enquiry page for a quotation. Institutions and contractors buying under a tender can also reach us via the tenders page.
