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CBSE Class 9 Maths Chapter 9 Areas of Parallelograms and Triangles Revision Notes

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CBSE Class 9 Maths Chapter Chapter 9 Areas of Parallelograms and Triangles Revision Notes

 

Revision is very important for better conceptual understanding and securing good marks, and for Revision, Revision Notes are always considered the best. CBSE Class 9 Maths Chapter 9 Areas of Parallelograms and Triangles Revision Notes can be very beneficial for students to revise all their previously prepared chapters and concepts, especially during the examination times when they have to revise the whole syllabus in a limited time period.

We, at Swiflearn, provides you the best CBSE Class 9 Maths Chapter 9 Areas of Parallelograms and Triangles Revision Notes. Free  Revision Notes provided here are prepared by Subject Matter Experts at Swiflearn who have a lot of experience in teaching. Chapter 9 Areas of Parallelograms and Triangles Revision Notes are one of the most important pieces of study material that students can use as it will aid them to study better and reduce the level of stress that they face during the hectic year.

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Parallelogram

 

Parallelogram is a special type of quadrilateral whose opposite sides do not
intersect. Parallelogram comes in the form of rectangles, rhombuses, and squares.

 

Area of parallelogram: 

If two parallelograms lie on the same base or equal base and have equal areas then they must lie between the same parallels.

Formula: Product of its base and corresponding altitude (Area = bh = BH)

 

Triangle

 

A Triangle is a polygon with three edges and three vertices.

 

Area of triangle:

Triangles ABD and ACD are on the same base and between same parallels. This implies that ar (ABD) = ar (ACD).

If two triangles lie on the same base or equal base and have equal areas then they must have equal altitudes

Formula: Area of a triangle is half the product of its base and corresponding altitude (or altitude is what we call as height). Area = 1/2 b X h

 

CBSE Class 9 Maths Chapter Chapter 9 Areas of Parallelograms and Triangles Revision Notes PDF

 

 

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