Page 262 - Start Up Mathematics_7

4. An increase in perimeter of a figure always increases the area of the figure. (True/False)

5. A circular pond is surrounded by a 2 m wide circular path. If outer circumference of circular
path is 44 m, find the inner circumference of the circular path. Also find area of the path.

6. A square tile of length 20 cm has four quarter circles at each corner (Fig. (i)). Find the area
of shaded portion. Another tile with same dimensions has a circle in the centre of the tile
(Fig. (ii)). If the circle touches all the four sides of the square tile, find the area of the shaded

portion. In which tile, area of shaded portion will be more? (Take  = 3.14)

20 cm 20 cm

Fig. (i) Fig. (ii)

7. Find the area enclosed by the given figure.

4 cm
10 cm

3 cm

15 cm

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