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Why is the curved surface of cone not 2pi x r x l when the circumference is 2 x pi x r and L is the slant height that moves through this distance?
Good question. Firstly, I'm assuming you are referring to a regular cone (i.e one with the same slope on all sides, as opposed to one where the uppermost "tip" is pushed off centre).
The area 2*pi*radius* length does give you a "surface", but it is based on the base measurements of the cone - it is the surface that would be created if you were to extend the curved surface straight upwards from the base of the cone (i.e creating a cylinder, not a cone).
A cone clearly has less curved surface area than a cylinder - in fact, it has half the surface area of the equivalent cylinder. So the equation is pi*radius*slant height. (i.e not 2*pi*radius*slant height).
What else can I help you with?
Does a pyramid have a curved surface?
No but a cone has a curved surface
What is the circumference of a circle with a perimeter of 162 linear feet?
Perimeter is the distance around something. In the case of a circle (or other curved figures), this is simply called the perimeter, so I would say perimeter is the same as circumference. Except that it is uncommon to call the circumference of a circle the "perimeter".
What is an arc in a circle?
a curved line that is part of the circumference of a circle
Is the earths surface flat or curved?
i think its curved
Which property of water causes a curved surface?
Adhesion is the property of water causes the curved surface
What dimension is circumference?
the enclosing boundary of a curved geometric figure, esp. a circle. the distance around a circle
Is the optical axis parallel to the curved surface?
No. It's straight through the center of the sphere that the curved surface is part of.
How many curved line in a circle?
A circle has one curved line and it is its circumference
Has a curve surface on which all points are at the same distance from its center?
A curved surface on which all points are the same distance from the center is called a sphere.
A hemisphere of radius R is placed in an uniform electric field E with it's axis perpendicular to the electric field E what is the electric flux through the curved surface?
The electric flux through the curved surface of the hemisphere can be calculated using the formula Φ = E * A, where E is the electric field strength and A is the area of the curved surface. The area of the curved surface of a hemisphere can be calculated as 2πR^2, where R is the radius of the hemisphere. So, the electric flux through the curved surface of the hemisphere is Φ = E * 2πR^2.
Is prism has curved surface?
No prism can have a curved surface.
Does a pyramid have a curved surface?
No but a cone has a curved surface
Difference between diameter and circumference?
A diameter is a straight line from one side of a circle, through the centre, to the other side. A circumference is the curved line forming the boundary of a circle.
Which one of the following geometric forms is a curved surface?
A sphere has a total curved surface. A cylinder and a cone have a partial curved surface
What is the circumference of a circle with a perimeter of 162 linear feet?
Perimeter is the distance around something. In the case of a circle (or other curved figures), this is simply called the perimeter, so I would say perimeter is the same as circumference. Except that it is uncommon to call the circumference of a circle the "perimeter".
A 3-dimensoial figure with a curved surface where all points are the same distance from a poinnt called that center what am i?
A sphere.
What is curved surface area of cube?
Zero. A cube does not have a curved surface area.
