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# Unit 3: Understanding Quadrilaterals

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This lesson covers skills from the following lessons of the NCERT Math Textbook: (i) 3.1 -Introduction

### Practice

- Open and closed curvesGet 3 of 4 questions to level up!
- Polygon typesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 160 Mastery points

This lesson covers skills from the following lessons of the NCERT Math Textbook: (i) 3.2 -Sum of the measures of the exterior angles of the polygons

### Learn

### Practice

- Interior and exterior angles of a polygonGet 3 of 4 questions to level up!

This lesson covers skills from the following lessons of the NCERT Math Textbook: (i) 3.3 -Kinds of quadrilaterals

### Learn

### Practice

- Side and angle properties of a parallelogram (level 1)Get 3 of 4 questions to level up!
- Diagonal properties of parallelogramGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

This lesson covers skills from the following lessons of the NCERT Math Textbook: (i) 3.4 -Some special parallelograms

### Practice

- Classifying rectangles, squares and rhombusesGet 3 of 4 questions to level up!
- Identify the quadrilateralGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 160 Mastery points

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Level up on all the skills in this unit and collect up to 700 Mastery points!