16.How many times a wheel of radius 28 cm must rotate to go 352 m? (Take π = 22/7)

9.The adjoining figure represents a rectangular lawn with a circular flower bed in the middle. Find: (i) the area of the whole land. (ii) the area of the flower bed. (iii) the area of the lawn excluding the area of the flower bed. (iv) the circumference of the flower bed. 16.How many times a wheel [...]

Pragya wrapped a cord around a circular pipe of radius 4 cm(adjoining figure) and cut off the length required of the cost. Then she wrapped it around a square box of side 4 cm(also shown). Did she have any cord left?(Take π=3.14) 16.How many times a wheel of radius 28 cm must rotate to go [...]

6.Two cross roads, each of width 10 m, cut at right angles through the centre of a rectangular park of length 700 m and breadth 300 m and parallel to its sides. Find the area of the roads. Also find the area of the park excluding cross roads. Give the answer in hectares. 16.How many [...]

16.How many times a wheel of radius 28 cm must rotate to go 352 m? (Take π = 22/7) 16.How many times a wheel of radius 28 cm must rotate to go 352 m? (Take π = 22/7) October 9, 2020 Category: Chapter 11 - Perimeter and Area , Maths , NCERT Class 7 ,