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
The dimensions of a room are 14 m × 10 m × 6.5 m. There are two doors and 4 windows in the room. Each door measures 2.5 m × 1.2 m and each window measures 15 m × 1 m. Find the cost of painting the four walls of the room at ₹ 35 per m2.
In the following figure, ABCD is a rectangle with AB = 14 cm and BC = 7 cm. Taking DC, BC and AD as diameters, three semi-circles are drawn as shown in the figure. Find the area of the shaded region.

In the following figure, the shaded area is

A square is inscribed in a circle. Find the ratio of the areas of the circle and the square.
From a rectangular sheet of paper ABCD with AB = 40 cm and AD = 28 cm, a semicircular portion with BC as diameter is cut off. Find the area of the remaining paper.
Find the areas of both the segments of a circle of radius 42 cm with central angle 120°. [Given, sin 120° = `sqrt(3)/2` and `sqrt(3) = 1.73`.]
The minute hand of a clock is 12 cm long. Find the area of the face of the clock described by the minute hand in 35 minutes.
Find the area of the circle, length of whose circumference is equal to the sum of the lengths of the circumferences with radii 15 cm and 13 cm.
In figure, AB is a diameter of the circle, AC = 6 cm and BC = 8 cm. Find the area of the shaded region (Use π = 3.14).
Area of a quadrant of a circle of radius 7 cm is ______.
