An arch is in the form of a semi-ellipse. It is 8m wide and 2m high at the centre. Find the height of the arch at a point 1.5 m from one end.

An arch is in the form of a semi-ellipse. It is 8 m wide and 2 m high at the centre. Find the height of the arch at a point 1.5 m from one end.

What is the amplitude of a point 0.375 m away from one end?

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 :

An arch is in the form of a parabola with its axis vertical. The arch is 10 m high and 5 m wide at the base. How wide is it 2 m from the vertex of the parabola?

An arch is in the form of a parabola with its axis vertical. The arch is 10m high and 5m wide at the base. How wide is it 2m from the vertex of the parabola ?

The radius of the base of a right circular cone is 12 m. If the slant height of the cone is 15 m, find the height of the cone.

The radius of the base of a right circular cone is 12 m. If the slant height of the cone is 15 m, find the height of the cone.

A rocket is in the form of a circular cylinder closed at the lower end with a cone of the same radius attached to the top. The cylinder is of radius 2.5m and height 21m and the cone has the slant height 8m. Calculate the total surface area and the volume of the rocket.