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Question 4 - Square and Rectangle - Chapter 9 Class 7 Perimeter and Area
Last updated at April 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
- 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
Question 4 The perimeter of a rectangular sheet is 100 cm. If the length is 35 cm, find its breadth. Also find the area. Length of rectangular sheet = l = 35 cm Breadth of rectangular sheet = b = ? Given, Perimeter of rectangular sheet = 100 cm 2 (l + b) = 100 2(35 + b) = 100 35 + b = 100/2 b = 50 − 35 b = 15 cm ∴ Breadth of rectangular sheet = b = 15 cm Now, Area of sheet = l × b = 35 × 15 = 525 sq. cm. = 525 cm2 Sheet is of area 525 cm2
