What is the surface area of a cylindrical ring if its outside diameter is 16 mm and its inside diameter is 10 mm? round your answer to the nearest whole number. a. 118mm2 b. 92mm2 c. 385mm2 d. 123mm2

Answer : The correct option is, (D)

Step-by-step explanation :

As we are given,

The outside diameter = 16 mm

The inner diameter = 10 mm

First we have to determine the radius of outside and inner radius of the ring.

As we know that,

Now we have to determine the surface of the ring.

Now put all the given values in this expression, we get:

Therefore, the surface area of cylindrical ring is

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step-by-step explanation: