A bridge is in the shape of a semi-ellipse. It is `400` metres long and has a maximum height of `10` metres at the middle point. The height of the bridge at a point distant `80` metres from one end is

A bridge is in the shape of a semi-ellipse. It is 400 metres One and has a maximum height of 10 metres at the middle point. The height of the bridge at a point distant 80 metres from one end is :

A bridge is in the shape of a semi ellipse . If it is 400 m long and has a maximum height of 10 m at midpoint . The height of the bridge distanced 80m from one end is

Write one use of metre bridge.

The shadow of a pole 6 metre high is 15 metre long and at the same time the shadow of a tree is 25 metre long. What is the height of the tree ?

The height of the mobile tower is 40sqrt3 metre. The angle of elevation of the top of the tower from a point a distance 120 metre from the foot of the tower is

Why should the balance point be obtained in the middle of the wire of a metre bridge?

The towers of a bridge, hung in the form of a parabola, have their tops 30 metres above the roadway and are 200 metres apart. If the cable is 5 metres above the road way at the centre of the bridge, find the length of the vertical supporting cable 30 metres from the centre.