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If R is the radius of the base of the hat, then the total outer surface area of the hat is

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in 8th-maths by (1.6k points)
If R is the radius of the base of the hat, then the total outer surface area of the hat is
image
Options:

(a) πr (2h + R)

(b) 2πr (h + R)

(c) `2 πrh + πR^2`

(d) None of these

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