1.

the slant height of a cone is 20cm,the diameter of the base is 15cm.find the curved surface area of cone .​

Answer»

ANSWER:

slant HEIGHT (L)=20 cm

diameter(d)=15 cm

radius(r)= 7.5 cm

curved SURFACE area of cone = π×r×l

= 22/7×7.5×20

= 471.24 cm is the answer

Step-by-step explanation:

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