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Example 13 - Chapter 9 Class 7 Perimeter and Area
Last updated at May 18, 2023 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
-
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 13 Diameter of a circular garden is 9.8 m. Find its area. Diameter = 9.8 m Radius = r = π·πππππ‘ππ/2 = 9.8/2 = 98/20 = 49/10 m Area of circle = πr2 = 22/7 Γ (49/10)^2 = 22/7 Γ 49/10 Γ 49/10 = 22/1 Γ 7/10 Γ 49/10 = (154 Γ 49)/100 = 7546/100 = 75.46 m2 β΄ Required Area is 75.46 m2
