Mathematics
The adjoining sketch shows a running track 3.5 m wide all around which consists of two straight paths and two semicircular rings. Find the area of the track.
Related Questions
In the adjoining figure, O is the center of a circular arc and AOB is a line segment. Find the perimeter and the area of the shaded region correct to one decimal place. (Take π = 3.142)
In the figure (i) given below, the radius is 3.5 cm. Find the perimeter of the quarter of the circle.
A road 3.5 m wide surrounds a circular park whose circumference is 88 m. Find the cost of paving the road at the rate of ₹60 per square metre.
If the diameter of a semi-circular protractor is 14 cm, then find its perimeter.