find the curved surface area of right circular cone of height 8 meters and base diameter 12 cm
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height = h = 8cm[may be you write meters instead of cm plz chek]
diameter = d = 12 cm
radius =r =d/2 =12/2 =6cm
slant height of the cone = l = ?
l^2 = h^2+r^2
= 8^2+6^2
= 64+36
=100
therefore
l=10cm
curved surface area of the cone = pi*r*l
= pi*6*10
= 60*pi cm^2
diameter = d = 12 cm
radius =r =d/2 =12/2 =6cm
slant height of the cone = l = ?
l^2 = h^2+r^2
= 8^2+6^2
= 64+36
=100
therefore
l=10cm
curved surface area of the cone = pi*r*l
= pi*6*10
= 60*pi cm^2
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