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Example 12 - Chapter 9 Class 7 Perimeter and Area
Last updated at Dec. 16, 2024 by Teachoo
Chapter 9 Class 7 Perimeter and Area
Concept wise
- Basic Definitions
- Square and Rectangle
- Converting Square to Rectangle
- Area of parallelogram
- Area of triangle
- Circumference of circle
- Perimeter of a combination of shapes
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Area of circle
- Area of combination of figures - two circles, circle and square
- Finding Area of rectangle with path outside/inside
- Finding Area of rectangle with cross roads
- Finding Area of rectangle with triangle
Transcript
Example 12 Find the area of a circle of radius 30 cm (use π = 3.14).Radius = r = 30 cm Area of circle = 𝜋 r2 = 3.14 × (30)2 = 314/100 × 900 = 314/1 × 9 = 2,826 cm2 ∴ Required area is 2,826 cm2
