19. Sweety runs around a square park of side 75 m. Bulbul runs around a rectangular
park with length 60 m and breadth 45 m. Who covers less distance?
20. The length of a rectangular hall is 6 m less than 3 times the breadth of the hall.
What is the length, if the breadth is b meters?
21. Which value of m satisfies the equation: 2m + 5 = 45
22. Do the ratios 15 cm to 2 m and 10 sec to 3 minutes form a proportion?
23. If the cost of 5 cans of juice is Rs. 210, then what will be the cost of 4 cans of
juice?
24. Draw the lines of symmetry in a regular pentagon.
25. Draw a circle of radius 5 cm.
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★Line symmetry in regular polygons
It has four lines of symmetry and four sides. A regular pentagon has 5 sides and 5 lines of symmetry.
☆let the cost of each cans of juice be X
Therefore,
6x =210
x = 210/6* = ₹ 35
Cost of 6 Cans = 6x=6×35=₹210
So,
★Cost of 4 Cans is =4x = 4×35= ₹ 140.
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