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Q: What is the surface area of a cone with a diameter 18 km and a slant height of 20.1 km?

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A cone with a slant height of 22cm and radius of 7cm has a total surface area of about 637.74cm2

Knowing the slant height helps because it represents the height of the triangle that makes up each lateral face. So, the slant height helps you to find the surface area of each lateral face.

1319.47 meters squared

The surface area of a cone: SA = pi*r² + pi*r*s (r is radius, s is slant height) The surface area of a pyramid: SA = [1/2 * Perimeter * Slant Height] + [Base Area]

These dimensions are not possible for a right cone. The radius must be less than the slant height. If we reverse the dimensions (radius 6, slant height 9) the total surface area will be about 282.74 units2

Related questions

A cone with a diameter of 15 and a slant height of 15 will have a total surface area of about 530.14 units2

The surface area is a function of the height (or slant height) and the radius of the base. So, the slant height is a function of the surface area and the base-radius. Since the latter is unknown, the slant height cannot be calculated.

678.909

The curved surface area of the cone is 801.11 square units.

Total surface area of cone = (pi*radius*slant height) + (pi*radius2) Area = (pi*12*21) + (pi*122) = 1244.070691 or about 1244 square m

Entire surface area of a cone = (pi*radius2)+(pi*radius*slant length) Use Pythagoras' theorem to find the slant length

A cone with a slant height of 22cm and radius of 7cm has a total surface area of about 637.74cm2

The surface area of a right cone with a radius of 8 and a slant height of 15 is: 377 units squared.

A right cone with a radius of 4 and a slant height of 13 has a total surface area of about 213.63 units2

Total surface area = (piradius2)+(piradius*slant length)

Knowing the slant height helps because it represents the height of the triangle that makes up each lateral face. So, the slant height helps you to find the surface area of each lateral face.

Slant height is 39.98 cm

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