Mathematics Lab Activity-20 Class X | Probability
Mathematics Lab Activity-20 Class X Mathematics Lab Activities on Probability for class X students with complete observation tables strictly according to the CBSE syllabus.
Objective:
Material RequiredGeometry box, coloured glazed papers, scissors, cardboard, white paper and adhesive.
Procedure
1. Take a cardboard of suitable size and paste a white paper on it.
2. Take a sheet of glazed paper and draw a circle of radius a units on it [see Fig. 1].
3. Make a cut-out of the circle and paste it on the cardboard.
4. Take two points A and B on the circle and join them to form chord AB [see Fig. 2].
6. Take replicas of the angles ∠ACB and ∠ADB. Put the cut-outs of ∠ACB and ∠ADB on each other such that vertex C falls on vertex D [see Fig. 4].
In Fig. 4, ∠ACB covers ∠ADB completely. So, ∠ACB = ∠ADB..
On actual measurement:
∠ACB = 65o.
∠ ADB = 65o.
So, ∠ACB = ∠ADB. Thus, angles in the same segment are Equal.
With this activity we prove that angles in the same segment of the circle are equal.
This result may be used in proving other theorems/riders of geometry
related to circles.
Comments
Post a Comment