Advertisements
Advertisements
प्रश्न
The circumference of a circular table is 88 m. Find its area.
Advertisements
उत्तर
Circumference of circle = 88 m
2πr = 88 m
`2 xx 22/7 xx r = 88`
`r = (88 xx 7)/(2 xx 22)`
r = 14 m
Area of circle = `pir^2`
= `22/7 xx 14 xx 14`
= 616 m2
APPEARS IN
संबंधित प्रश्न
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`
A circular field has a perimeter of 650 m. A square plot having its vertices on the circumference of the field is marked in the field. Calculate the area of the square plot.
The perimeter of the sector OAB shown in the following figure, is
In the given figure, O is the centre of the circle with AC = 24 cm, AB = 7 cm and ∠BOD = 90°. Find the area of shaded region.
Two circles touch each other externally. The sum of their areas is 74π cm2 and the distance between their centers is 12 cm. Find the diameters of the circle.
A piece of wire of length 108 cm is bent to form a semicircular arc bounded by its diameter. Find its radius and area enclosed.
The sum of the radii of two circles is 10.5 cm and the difference of their circumferences is 13.2 cm. Find the radii of the two circles.
The ratio of the area of a circle to the area of its semicircle is
Find the area of the shaded region:
How much distance, in metres, a wheel of 25 cm radius will cover if it rotates 350 times?
