Section Formula and Centroid. Mathematics State Board, Class 9: lessons, tests, tasks.

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1.	Introduction to section formula
2.	Section formula using graphical representation
3.	Introduction to centroid

1.	Multiple choice question I Difficulty: easy	2
2.	Multiple choice question II Difficulty: easy	2
3.	Multiple choice question III Difficulty: easy	1
4.	Two marks example problems I Difficulty: medium	2
5.	Two marks example problems II Difficulty: medium	2
6.	Two marks exercise problems I Difficulty: medium	4
7.	Two marks exercise problems II Difficulty: medium	2
8.	Two marks exercise problems III Difficulty: medium	4
9.	Two marks exercise problems IV Difficulty: medium	2
10.	Two marks exercise problems V Difficulty: medium	4
11.	Two marks exercise problems VI Difficulty: medium	2
12.	Five marks example problems III Difficulty: hard	10
13.	Five marks exercise problems VII Difficulty: hard	5
14.	Five marks exercise problems VIII Difficulty: hard	0
15.	Five marks exercise problems IX Difficulty: hard	5
16.	Five marks exercise problems X Difficulty: hard	5
17.	Five marks exercise porblems XI Difficulty: hard	5
18.	Five marks exercise problems XII Difficulty: hard	5

1.	Find the coordinate 'P' Difficulty: easy	1
2.	Find the centroid Difficulty: easy	2
3.	Find the co-ordinates of 'B' Difficulty: medium	4
4.	Find the point by its extension Difficulty: medium	5
5.	Find the ratio Difficulty: medium	3
6.	Calculate the value of 'P' Difficulty: medium	4
7.	Find the value of 'k' Difficulty: medium	3
8.	Find the vertex of 'C' Difficulty: medium	4
9.	Evaluate the centroid of the triangle Difficulty: hard	6
10.	Find the number of pots made Difficulty: hard	6

1.	Determine the ratio of the divided point Difficulty: hard	5
2.	Find the coordinates of the new end points Difficulty: hard	5
3.	Determine the radius of the circle Difficulty: hard	5
4.	Find the coordinates of the point C Difficulty: hard	5

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