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What faces does a cone have?
A plane circular face and a curved shape which, if flattened out would be a sector of a circle.A plane circular face and a curved shape which, if flattened out would be a sector of a circle.A plane circular face and a curved shape which, if flattened out would be a sector of a circle.A plane circular face and a curved shape which, if flattened out would be a sector of a circle.
How many surfaces has a closed cone?
Two - one circumferential which when developed will give a sector-like form the other is the circular base
What is a region bounded by two arcs of a circle and two radii?
Circular Ring Sector.
What is the formula to calculate sector?
A sector is a part of a circle which looks the same shape as a piece of a circular pie. You probably remember that Pi charts look like a circular cake cut into portions. We can calculate the area of the sector of a circle if we know the angle between the two straight sides and the radius of the circle. Now the area of a complete circle is Pi x square of radius, If the radius is 12 cm then the circle's area will be Pi x square of 12 square centimetres. But that is for the full circle. If the sector's angle is 60 degrees, that would mean that the area of the sector would be 60 degrees/360 degrees which equals 1/6; so finally, the area of the sector is (Pi x 12 squared) divided by 6 = 75.398 sq cm )correct to 4 decimal places).
What does the net of a cone look like?
a circle base with the sides rising up in a circular fashion meeting at one point
