

Last updated at Dec. 12, 2018 by Teachoo
Transcript
Example 5 The area of a square and a rectangle are equal. If the side of the square is 40 cm and the breadth of the rectangle is 25 cm, find the length of the rectangle. Also, find the perimeter of the rectangle. Square Side of square = a = 4 cm Area of square = a2 = (40)2 = 1600 cm2 Rectangle Length of rectangle = l = ? Breadth of rectangle = b = 25 cm Area of rectangle = l × b = l × 25 = 25l cm2 Given, Area of square = Area of rectangle 1600 = 25l 25l = 1600 25l = 1600/25 l = 320/5 l = 64 cm ∴ Length of given rectangle is of 64 cm Also, we need to find perimeter of rectangle Perimeter of rectangle Length of rectangle = l = 64 cm Breadth of rectangle = b = 25 cm Perimeter = 2 (l + b) = 2 (64 + 25) = 2 × 89 = 178 cm ∴ Perimeter of rectangle is 178 cm
Examples
Example 2
Example 3
Example 4 Important
Example 5 Important You are here
Example 6
Example 7
Example 8 Important
Example 9
Example 10
Example 11 Important
Example 12
Example 13
Example 14 Important
Example 15 Important
Example 16 Important
Example 17
Example 18
Example 19 Important
Example 20
Example 21
Example 22
About the Author