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If the radius of the base of a solid cone is 'r' and its slant height is 1 then what is its lateral surface area?

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CBSE/Class 9/Mathematics Tuition/Class IX-X Tuition

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Mathematics Professor

Lateral surface area of cone=πrl =π×r×1 πr
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B. Com. (Hons.), B. Ed.

Lateral surface area of cone=rl Since l=1 LSA=r1 => LSA = r unit square
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Maths Science Expert

Radius = r slant height=l=1 So, lateral surface area of cone= rl = rX1 = r
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Tutor

Lateral surface area= r l Given l=1 LSR= r
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Training Centre

Pie r unit^2
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