what is the length of the cone

The Height is 6 Cm
Radius is 2 Cm
Slant height is 4 Cm

The length of the cone, also known as the slant height, is 4 cm.

what is the radius of a cylinder with a diameter of 14 inches

The radius of a cylinder with a diameter of 14 inches is half of the diameter, so the radius is 7 inches.

the point on a cone where two or more line segments meet is called the?

The point on a cone where two or more line segments meet is called the apex or the vertex.

what is the radius of a cylinder with a diameter of 16 units

The radius of a cylinder with a diameter of 16 units is half of the diameter, so the radius is 8 units.