Advertisements
Advertisements
प्रश्न
In a grassland, a sheep is tethered by a rope of length 4.9 m. Find the maximum area that the sheep can graze
उत्तर
Length of the rope = 4.9 m
Area that the sheep can graze = Area of circle with radius 4.9 m
Area of the circle = πr2 sq.units
= `22/7 xx 4.9 xx 4.9`
= 22 × 0.7 × 4.9
= 75.46
∴ Area that the sheep can graze = 75.46 m2
APPEARS IN
संबंधित प्रश्न
Find the cost of polishing a circular table-top of diameter 1.6 m, if the rate of polishing is ₹ 15/m2. (Take π = 3.14)
A 80 m by 64 m rectangular lawn has two roads, each 5 m wide, running through its middle, one parallel to its length and the other parallel to its breadth. Find the cost of gravelling the reads at ₹` 40 per m^2`
The length of the minute hand of a clock is 14 cm. Find the area swept by the minute hand in 5 minutes.
In the following figure, the boundary of the shaded region consists of four semi-circular arcs, the smallest two being equal. If the diameter of the largest is 14 cm and of the smallest is 3.5 cm, find
the length of the boundary.
the area of the shaded region.
In the following figure, the shaded area is
In the given figure, PSR, RTQ and PAQ are three semicircles of diameter 10 cm, 3 cm and 7 cm respectively. Find the perimeter of shaded region. [Use π= 3.14]
If a square is inscribed in a circle, find the ratio of the areas of the circle and the square.
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.
Find the diameter of a circle whose area is equal to the sum of the areas of the two circles of radii 24 cm and 7 cm.
Area of a circle with diameter ‘m’ radius ‘n’ and circumference ‘p’ is ______.
