Related InterviewSolutions

• In Figure, two circular flower beds have been shown on two sides of asquare lawn ABCD of side 56m. If the centre of each circular flower bed isthe point of intersection of the diagonals of the square lawn, find the sumof the areas of the lawns and the flower beds.
• The perimeter of a semi circular protractor is 32.4 cm. Calculate : (i) the radius of protractor in cm, (ii) the arc of protractor in `cm^(2)`
• The inner perimeter of a running track (shown in figure) is 400 m. The length of each of the straight portion is 90 m and the ends are semicircular. If the track is everywhere 14 m wide, find the area of the track. Also, find the length of the outer running track.
• In the adjoining figure, two concentric circle with centre O have radii 21 cm and 42 cm. If `angleAOB = 60^(@)`, find the area of the shaded region. (Use `pi = (22)/(7)`)
• Three semicircles each of diameter 3 cm, a circle of diameter 4.5 cm and a semicircle of radius 4.5 cm are drawn in the adjoining figure. Find the area of the shaded region.
• The circumference of a field is 220m. Find (i) its radius (ii) its area
• Find the area of a circular park whose radius is 4.5 m
• The circumference of a circle exceeds the diameter by 16.8 cm. Find the radius of the circle
• The area of a circular plot is `346.5 m^(2)`. Calculate the cost of fencing the plot at the rate of Rs 6 per metre
• The diameter of a cycle wheel is 28 cm. How many revolutions will it make in moving 13.2 km?