Question 112

The total surface area of a right circular cylinder with radius of the base 7 cm and height 20 cm is:

Solution

Radius of cylinder = 7 cm and height = 20 cm

=> Total surface area of a right circular cylinder = $$2\pi r(r+h)$$

= $$2\times\frac{22}{7}\times7\times(7+20)$$

= $$44\times27=1188$$ $$cm^2$$

=> Ans - (A)

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