Question

find the surface area of a right circular cone whose diameter of the base is 10 cm and height is 12 CM​

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Answer:  204.28 cm²

Step-by-step explanation:

Given,

Diameter (d)= 10 cm

Therefore, Radius (r)= d/2 = 10/2 = 5 cm

Height (h) = 12 cm

Slant height (l) = √h²+r²

l = √12²+5²

l = √144+25

l = √169

l= 13 cm

Surface Area of RIGHT CIRCULAR CONE = πrl

22/7×5×13

110/7×13

204.28

THE SURFACE AREA OF RIGHT CIRCULAR CONE IS 204.28 cm²