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Ex 10.1, 12 - Chapter 10 Class 6 Mensuration
Last updated at August 10, 2026 by Teachoo
Chapter 10 Class 6 Mensuration
Concept wise
- Perimeter
- Perimeter of Rectangle
- Perimeter of Square
-
Perimeter of Triangle
- Perimeter of Pentagon and Hexagon
- Area - Definition
- Finding area by counting squares
- Area of Square
- Area of Rectangle
- Area by splitting into rectangles
- Finding Area by Changing units
- Area questions with both rectangles and squares
Transcript
Ex 10.1, 12 Two sides of a triangle are 12 cm and 14 cm. The perimeter of the triangle is 36 cm. What is its third side? Here, AB = 12 cm BC = 14 cm CA = ? Given, Perimeter of ∆ABC = 36 Sum of all sides = 36 AB + BC + CA = 36 12 + 14 + CA = 36 CA + 26 = 36 CA = 36 − 36 CA = 10 cm ∴ Third side is 10 cm
