The inside perimeter of a running track as shown in the adjoining figure is `340m`. The length of each straight portion is `60m` and the curved portion are semi-circles. If the track is `7m` wide, find the outer perimeter of the track. (Use `pi=22/7`)

The inside perimeter of a running track as shown in the adjoining figure is 340m . The length of each straight portion is 60m and the curved portion are semi-circles. If the track is 7m wide, find area of te track. (Use pi=22/7 )

The inside perimeter of a running track shown in the figure is 400m . The length of each of the straight portion is 90m and the ends are semi-circles. If the track is 14m wide everywhere, find the length of outer boundary of the track. ( pi=22/7 )

In Fig12.26 depicts a racing track whose left and right ends are semicircular.The distance between the two inner parallel line segments is 60 and they are each 106 m long.If the track is 10 m wide,find:(i)the distance around the track along its inner edge

The inner circumference of a circular track is 220 m. The track is 7 m everywhere. Calculate the cost of putting a fence along the outer boundary at rupees 20 per metre.

Find the perimeter and area of shaded region where ADC, AEB and BFC are semi-circles on the diameter AC, AB and BC respectively. ( pi=22/7 )

A well of diameter 3 m is dug 14 m deep.They earth taken out of it has been spread evenly all around it to a width of 4 m to from an embankment. Find the height of the embankment (Use... pi=22/7 ).

On an open ground, a motorist follows a track that turns to his left by an angle of 60° after every 500 m. Starting from a given turn, specify the displacement of the motorist at the third, sixth and eighth turn. Compare the magnitude of the displacement with the total path length covered by the motorist in each case.

How many cubic meters of soil shall be taken out while digging a well of depth of 22.5m and diameter 7m.?Also find the total cost of cementing the curved surface inside the well at the cost of Rs.20 per square metre.

A well whose diameter is 7 m, has been dug 22.5 m deep and the earth dug out is used to form an embankment 10.5 m wide around it. Find the height of the embankment.

Find the force between two straight parallel wires, each of length one metre and cach carrying a current of 100 amperes when separated by a distance of one metre (given mu_0 = 4pi x 10^-7 N/m) .