Class 7 Maths · Part 2 Chapter 1 · CBSE / NCERT
Geometric Twins
Congruent shapes: exact copies. You’ll learn the SSS, SAS, ASA, AAS and RHS tests for congruent triangles, which matching parts are enough, and the angles of isosceles and equilateral triangles.
12 short lessons · about 48 minutes in all
What you’ll learn
- 1Figures that fit exactly4 min
- 2Two arms and the gap between4 min
- 3Three sides are enough4 min
- 4Which corner matches which4 min
- 5Same angles, different size4 min
- 6Two sides and the angle between4 min
- 7When two sides and an angle fail4 min
- 8Two angles and the side between4 min
- 9Two angles and any side4 min
- 10Right angle, hypotenuse, side4 min
- 11The two equal-sided angles4 min
- 12All sides equal, all angles equal4 min
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Figures that fit exactly · about 4 minutes
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More Class 7 Maths
The other 14 chapters.
PART 1 · CH 1Large Numbers Around Us12 lessonsPART 1 · CH 2Arithmetic Expressions10 lessonsPART 1 · CH 3A Peek Beyond the Point12 lessonsPART 1 · CH 4Expressions Using Letter-Numbers11 lessonsPART 1 · CH 5Parallel and Intersecting Lines10 lessonsPART 1 · CH 6Number Play10 lessonsPART 1 · CH 7A Tale of Three Intersecting Lines12 lessonsPART 1 · CH 8Working with Fractions10 lessonsPART 2 · CH 2Operations with Integers12 lessonsPART 2 · CH 3Finding Common Ground10 lessonsPART 2 · CH 4Another Peek Beyond the Point10 lessonsPART 2 · CH 5Connecting the Dots…12 lessonsPART 2 · CH 6Constructions and Tilings11 lessonsPART 2 · CH 7Finding the Unknown11 lessons
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