# Deriving formula for area of a kite

From Karnataka Open Educational Resources

- Estimated Time : 30 minutes.
- Materials/ Resources needed: Laptop, geogebra file, projector and a pointer.
- Prerequisites/Instructions, if any

- Basics of a triangle and kite should have been done.

- Multimedia resources: Laptop
- Website interactives/ links/ / Geogebra Applets
- Process:

- The teacher can project the geogebra file on kite.
- Show them that a kite is made of two isosceles traingles.
- Sum of areas of these two triangles would be the area of the kite.

- Developmental Questions

- What is a kite ?
- What are the properties of a kite.
- What other figures can you see in a kite ?
- What types of triangles are these ?
- Identify the two isosceles triangles ?
- What is the formula to find the area of a triangle ?

- Evaluation:

- Choosing which two traingles out of the 8 visible types would be easy to deduce the area of kite ?

- Question Corner:

- Recall the two formulae that you know to find the area of a triangle.