Quadrilaterals. Mathematics CBSE, Class 9: lessons, tests, tasks.

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1.	Recalling the types and the properties of a quadrilateral
2.	Theorem I, II and III
3.	Theorems IV and V
4.	Theorems VI and VII
5.	Another Condition for a Quadrilateral to be a Parallelogram
6.	The Mid-point Theorem
7.	Example problems based on theorems

1.	Find all the angles of a quadrilateal Difficulty: easy	2
2.	Identify the correct theorem Difficulty: easy	3
3.	Identify the true statements Difficulty: easy	3
4.	Choose the correct answer Difficulty: medium	4
5.	Prove the given statement Difficulty: medium	2
6.	Which of the following are correct? Difficulty: medium	4
7.	Find the measure of the given angle Difficulty: medium	3
8.	Do the problem! Difficulty: medium	4
9.	Fill in the blanks Difficulty: medium	4
10.	Drag the correct answers Difficulty: hard	5
11.	Find the following Difficulty: hard	6
12.	Determine the length of the line segment Difficulty: hard	5

1.	Training test Difficulty: medium	10
2.	Training test Difficulty: medium	11

1.

Methodical recommendation

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