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Area of Triangle
Last updated at March 13, 2026 by Teachoo
Class 8 (Ganita Prakash - 1, 2 & Old NCERT)
Chapter 7 Class 8 - Area (Ganita Prakash II)
- Area of Rectangle and Square
- Perimeter vs Area
- Figure it out - Page 150-152
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Area of Triangle
- Applications of Area of Triangle Formula
- Triangles between Parallel Lines with a Common Base
- Figure it out - Page 157-159
- Area of any Polygon
- Figure it out - Page 160
- Area of Parallelogram
- Area of Rhombus
- Area of Trapezium
- Figure it out - Page 169-170
- Areas in Real Life
Transcript
Area of a triangleLet us take right angled triangle ABC Let there be another triangle which is exactly same as ∆ABC If we join both these triangles We get a Rectangle ABCD Now, Area of Rectangle = Base × Height Area of ∆ABC + Area of ∆DCA = b × h Since both triangles are same, their area is same 2 Area of ∆ABC = b × h Area of ∆ABC = b × h Area of ∆ABC = 1/2 × b × h So, our formula is Area of triangle = 𝟏/𝟐 × Base × Height Now, it’s important to know what Base and Height of triangle are in different scenarios
