Question

Find the slant height and curved surface area of a cone whose volume is 12935 cu.cm and the diameter of the base is 42 cm.

Answer 1

Answer:Height=27.9978 cm

Step-by-step explanation:Given,

Diameter =42 cm

Therefore radius =42÷2=21 cm

We know,volume of cone=1/3×pi×r^2×h

=>12935=1/3×22/7×21×21×h

=>h=(12935×7×3)÷(22×21×21)

=27.9978 cm

Now you can find slant height and CSA

Answer 2

Diameter =42 cm

Therefore radius =42÷2=21 cm

Volume of cone=1/3×pi×r^2×h

=>12935=1/3×22/7×21×21×h

=>h=(12935×7×3)÷(22×21×21)

=27.9978 cm