# A quadrant of a circle of radius 8.4 cm is changed as cone. find radius and slant height of cone.

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by Mmuthu

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by Mmuthu

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Radius of quadrant of circle, R = 8.4cm

Perimeter of quadrant =

Perimeter of quadrant = Perimeter of base of cone

let radius of cone = r

Slant height of cone is R, so slant height is 8.4cm.

Perimeter of quadrant =

Perimeter of quadrant = Perimeter of base of cone

let radius of cone = r

Slant height of cone is R, so slant height is 8.4cm.

slant height(l)=R=8.4 cm

r(cone's radius)

x=(angle) 360/4=90

radius of the cone=2.1cm