Advertisements
Advertisements
Question
The circumference of a circular park is 352 m. Find the area of the park
Advertisements
Solution
Circumference of a Circle = 2πr units
Given circumference of a circular park = 352 m
2πr = 352
`2 xx 22/7 xx "r"` = 352
r = `352 xx 7/22 xx 1/2` = 56 m
Area of the park = πr2
= `22/7 xx 56 xx 56 "sq.units"`
= 22 × 8 × 56
= 9856 m2
∴ Area of the Circular park = 9856 m2
APPEARS IN
RELATED QUESTIONS
The perimeter of a rectangular plot of land is 80 m and its breadth is 16 m. Find the length and area of the plot.
The cost of painting the four walls of a room 12 m long at `₹ 30 per m^2 is ₹ 7560 per m^2` and the cost of covering the floor with the mat at ₹` 25 per m^2 is ₹ 2700 `. find the dimensions of the room.
Find the area of the quadrilateral ABCD in which in AB=42 cm, BC=21 cm, CD=29cm, DA=34 cm and diagonal BD = 20 cm.
An archery target has three regions formed by three concentric circles as shown in figure. If the diameters of the concentric circles are in the ratios 1 : 2 : 3, then find the ratio of the areas of three regions.
In the following figure find the area of the shaded region. (Use π = 3.14)

Two circular pieces of equal radii and maximum area, touching each other are cut out from a rectangular card board of dimensions 14 cm × 7 cm. Find the area of the remaining card board. (Use π = 22/7).
Write the area of the sector of a circle whose radius is r and length of the arc is l.
In the given figure, an equilateral triangle has been inscribed in a circle of radius 4 cm. Find the area of the shaded region.

There is a path of uniform width 7 m round and outside a circular garden of diameter 210 m. Find the area of the path.
The ratio of the area of a circle to the area of its semicircle is
