What is the surface area formula for a cone and what is the formula for the surface area of a cone?

The side of the cone is a triangle: the bottom is the perimeter of the bottom of the original cone, and the height is the bus bar (the distance from the vertex of the cone), then the area is 1 2 * bottom * height (bus bar) This is the side area, plus the base area is the area of the circle Pi) * the square of the radius This is the base area, and the sum of the two is the surface area of the cone, that is:

1 2 * bottom (bottom circumference) * height (conic busbar) + pi) * square of radius = surface area of the cone.

Half times the base (the circumference of the base circle) times the height (conical busbar) + pi) times the square of the radius == the surface area of the cone.

Bottom area + side area.

r²+∏rl

l is the length of the line segment on the vertex to the base circle.

The surface area of the cone = the base area + the side area.

r²+πr√(h²+r²

Cone surface area = number of angles at the center of the circle 360 degrees (square of the conic busbar The base area of the cone.)

Gao: <>

L: bus length, R: bottom radius).

Bottom circumference: <>

r: base radius, <

Side view of the arc of the center of the circle, l: bus length).

The surface area of the cone is made up of two parts: the side area and the bottom area. Full area (s) = S side + S bottom; <>

where S side = <>

R: Bottom radius, L: Conical busbar, <

Side view of the radian of the center of the circle).

The formula for calculating the surface area of the cone is: surface area of the cone = bottom surface white product + side area (the side area is a fan shape that does not curve the side area of the cone. ), which is represented by a letter is s = r + rl (where l = busbar, which is the distance between the vertex of the cone and the circumference of the bottom surface of the cone).

Side area = <>

The surface area is equal to the sum of the side area and the bottom circle area <>

1 2 of the surface area of a cylinder of equal height at the same bottom. Because the equal bottom cylinder has 2 bottom surfaces, and the conical bush hand has 1. The combination of the two sides is equal to 1 2 of the area of the cylinder side of the same bottom and equal height.

The formula for calculating the surface area of the cone is: surface area of the cone = bottom area + side area (the side area is a fan shape that does not curve the side area of the cone. ), which is represented by a letter is s = r + rl (where l = busbar, which is the distance between the vertex of the cone and the circumference of the base surface of the cone).

Side area = <>

The surface area is equal to the sum of the side area and the bottom circle area <>

The formula for calculating the surface area of the cone is: surface area of the cone = bottom area + side area (the side area is a fan shape that does not curve the side area of the cone. ), which is represented by a letter is s = r + rl (where l = busbar, which is the distance between the vertex of the cone and the circumference of the base surface of the cone).

Side area = surface area is equal to the sum of the side area and the area of the base circle.

Questions. What is the surface area of the vertical height of the cone with a diameter of about 7 meters?

The formula for calculating the surface area of a cone is: s rl r

Full area (s) = S side + S bottom; In the calculation of the surface area of the cone, S is the surface area, R is the radius of the ground circle, and L is the conical busbar.

Questions. l is which length.

Questions. Thank you.

l is the busbar, under the root number.

l Ask questions. Ok thanks! Thank you so much.

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The formula for the surface area of the cone is s = vulr 2 + vul rl. where R is the bottom radius, and L is the length of the busbar.

Hello! Surface area formula for a cone:

s=πr^2+πrl

The surface area of the cone = the side area of the cone + the area of the bottom circle.

The side area of the cone = rl

The full area of the cone = rl + r2

The formula for the surface area of the cone is: s = s side + s bottom = rl + r 2;where the S side = 1 2 l 2 = rl. （r：

Brief introduction of information:

1) The object enclosed by the cone of the surface formed by the rotation of one right-angled side of the right-angled triangle is the axis of rotation before the rotation, and the other two sides are rotated.

2) The cone consists of a vertex, a side and a base, and the distance from the vertex to the center of the bottom circle is the height of the cone.

3) The cone has two sides, the bottom surface is circular and the sides are curved.

4) Let the cone be along the busbar, which is a fan. The volume of a cylinder is equal to three times the volume of a cone of the same height as its base, which is called a cone.

5) The formula for the volume of the cone: one-third of the base area multiplied by the height, expressed by letters as 1 3 r h.

The surface area of the cone = the side area of the cone + the area of the bottom circle.

The side area of the cone = rl

The full area of the cone = rl + r2

r is the semi-sensitive wild guess path of the bottom surface of the cone.

l is the length of the bus bar of the cone.

By the way, under the bridge type, the bus bar is the radius of the ridge and fan after the side is opened.

The formula for calculating the surface area of the cone is: surface area of the cone = bottom area + side area (the side area ruler makes the side area of the cone not curved, which is a fan). ), which is represented by a letter is s = r + rl (where l = busbar, which is the distance between the vertex of the cone and the circumference of the base surface of the cone).

Extended information: It should be noted that some students tend to ignore the area of the bottom circle when finding the surface area of the cone, and mistakenly regard the side area as the surface area, when in fact, the surface area of the cone is composed of two parts: the side area and the bottom area.

When calculating the surface area of the cone, you can first calculate the bottom area and side area of the cone, and then add the two to get the surface area of the Zhenzhou cone. If you don't know the bottom area and side area of the cone, you can calculate the surface area of the cone according to the calculation formula of the base area (i.e., the circle) and the side area (i.e., the fan) respectively, and then sum it to get the surface area of the cone.

The cone has a bottom surface, a side, a vertex, a height, and countless busbars, and the bottom view is a circle, and the side view is fan-shaped. <>