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`)

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 )

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.

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.

A horse is tied to one corner of a field which is if the shape of an equilateral triangle of side 12 m . If the length of the rope is 7 m, find the area of the field which the horse cannot graze. ( pi = 3.14 , sqrt 3 = 1.732 )

The Class X students of a secondary school in Krishinagar have been allotted a rectangular plot of land for their gardening activity.Sapling of Gulmohar are planted on the boundary at a distance of 1 m from each other.There is a triangular grassy lawn in the plot as shown in the Fig.7.14.The students are to sow seeds of flowering plants on the plot. (i)Talking A as origin,find the coordinates of the vertices of the triangle

Two trains A and B of length 400 m each are moving on two parallel tracks with a uniform speed of 72 km h^-1 in the same direction, with A ahead of B. The driver of B decides to overtake A and accelerates by 1 m//s^-2 . If after 50 s, the guard of B just brushes past the driver of A, what was the original distance between them?

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) .