# Construction of Triangles(SAS)- Activity 3

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### Objectives

### Estimated Time

### Prerequisites/Instructions, prior preparations, if any

### Materials/ Resources needed

Drawing a triangle when measures of two sides and one angle are given

### Process (How to do the activity)

- Draw a triangle with following measures - BC = 8 cms, ∡ABC = 40, AB = 6 cms (BC as the base)

‘Play’ the construction protocol navigator to understand the construction, after students have constructed on their own

- What kind of triangle is it?
- What kind of triangle is it - by sides?
- What kind of triangle is it - by angles?

- Would it be possible to draw a triangle, if ∡ABC was changed to 110?Why

- What kind of triangle is it?

The circle drawn from point B, intersect RAY AC in a second point ‘E’. Will Triangle ABE fulfill the requirements of the construction?