What is the formulas for determining the lateral area of any prism/regular pyramid/cone/cylinder?

PLEASE HELP! Very important help much appreciated

Hi,

Lateral Area of any prism = perimeter of base x height of prism

Lateral Area of any regular pyramid = ½ x perimeter of base x slant height of pyramid

(Remember: apothem² + height² = slant height²)

Lateral Area of any cone = πrs, where r = radius of base and s = slant height

(Remember: radius² + height² = slant height²)

Lateral Area of any cylinder = 2πrh, where r = radius of base and h = height

I hope that helps!!

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One Response to “What is the formulas for determining the lateral area of any prism/regular pyramid/cone/cylinder?”

Pi R Squared on December 31st, 2009 at 6:33 pm

Hi,

Lateral Area of any prism = perimeter of base x height of prism

Lateral Area of any regular pyramid = ½ x perimeter of base x slant height of pyramid

(Remember: apothem² + height² = slant height²)

Lateral Area of any cone = πrs, where r = radius of base and s = slant height

(Remember: radius² + height² = slant height²)

Lateral Area of any cylinder = 2πrh, where r = radius of base and h = height

I hope that helps!!
References :

Area List