Q: What is the lateral area of a right cone with the diameter of 13cm. and slant height of 12cm.?

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Why do you need to FIND the slant height if you have the [lateral height and] slant height?

pi x radius x slant height

Uisng the lateral area and tha radius, you should be able to find the height of the cone. Using the height and radius as the legs of a right triangle, use the Pythagorean Theorem. The hypotenuse is the slant height.

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

You need some information about the height of the pyramid and the formula will depend on whether you have the vertical height or the slant height or the length of a lateral edge.

Related questions

The lateral area of a right circular cone with a base diameter of 4 m and a slant height of 15 m is: 94.25 m2

Why do you need to FIND the slant height if you have the [lateral height and] slant height?

Lateral area is 188.5 m2

95.08 m2

The lateral surface area of a right circular cone with a radius of 12cm and a slant height of 20cm is approximately 754cm2

pi x radius x slant height

No, the slant height is the from the top vertex to the base of the base of the pyramid, it forms a 90 degree angle with the base and slant height. The lateral edge is literally the lateral (side) edge.

Uisng the lateral area and tha radius, you should be able to find the height of the cone. Using the height and radius as the legs of a right triangle, use the Pythagorean Theorem. The hypotenuse is the slant height.

LA= πrsLA=piRS

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.

The lateral area... Apex :)

First is to understand the terms. Lateral area is the surface area of a 3D figure, excluding the area of any base. Laterial Area (L.A.) of a right cone = pi*radius*slant height radius = 1/2 * diameter L.A. = pi*(1/2)*(4)*(15)=30*pi the formula for this is pi*r*rt(r^2 + h^2). If the diameter is 4, then the radius is 2. If the slant height is 15, then to get the real height we use the Pythagorean Theorem and get rt(221). So the lateral area is pi*2*rt(2^2 + (rt221)^2)...= 2pi*rt(225) = 30pi = 94.248 meters squared which is rounded to 94 meters squared.