The lateral surface area ( A ) of a cone can be calculated using the formula ( A = \pi r \ell ), where ( r ) is the radius and ( \ell ) is the slant height. Given that the lateral surface area is 285 sq. cm and the radius is 10 cm, we can rearrange the formula to find ( \ell ):
[ \ell = \frac{A}{\pi r} = \frac{285}{\pi \times 10} = \frac{285}{31.42} \approx 9.06 \text{ cm}. ]
Thus, the slant height ( \ell ) is approximately 9.06 cm.
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.
The slant height cannot be larger than the base radius.
The formula to find the lateral area of a right cone is given by ( LA = \pi r s ), where ( r ) is the radius of the base and ( s ) is the slant height. This formula calculates the curved surface area of the cone, excluding the base. To use it, simply multiply the radius by the slant height and then by (\pi).
The formula to find the lateral area ( A ) of a right cone is given by ( A = \pi r s ), where ( r ) is the radius of the base of the cone and ( s ) is the slant height. This formula calculates the surface area of the cone's curved surface, excluding the base.
Why do you need to FIND the slant height if you have the [lateral height and] slant height?
The lateral surface area of a right circular cone with a radius of 12cm and a slant height of 20cm is approximately 754cm2
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.
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The slant height cannot be larger than the base radius.
The lateral surface area is 18.85 square inches.
The formula to find the lateral area of a right cone is given by ( LA = \pi r s ), where ( r ) is the radius of the base and ( s ) is the slant height. This formula calculates the curved surface area of the cone, excluding the base. To use it, simply multiply the radius by the slant height and then by (\pi).
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.
Why do you need to FIND the slant height if you have the [lateral height and] slant height?
The formula to find the lateral area ( A ) of a right cone is given by ( A = \pi r s ), where ( r ) is the radius of the base of the cone and ( s ) is the slant height. This formula calculates the surface area of the cone's curved surface, excluding the base.
The lateral surface area is A = pi*(radius)*(slant height), where (slant height) = sqrt(r^2 + h^2). So A = pi*(5 in)*sqrt((5 in)2+(19 in)2) = 308.6125 square inches
The lateral area is, I think, 35pi and the surface area is 60pi.188.40 units sq.
37.7 units2