If the diameter of a cylinder is 2.3 m and the height is 334 cm, what is the calculated surface area in square metres?

Study for the ABSA 4th Class Power Engineer Test. Explore questions with hints and explanations. Get ready to ace the exam!

To calculate the surface area of a cylinder, you can use the formula:

[ \text{Surface Area} = 2\pi r(h + r) ]

where ( r ) is the radius of the cylinder and ( h ) is the height. Given that the diameter is 2.3 m, you can find the radius by dividing the diameter by 2:

[ r = \frac{2.3 , \text{m}}{2} = 1.15 , \text{m} ]

The height needs to be converted from centimeters to meters to maintain consistent units:

[ h = 334 , \text{cm} = 3.34 , \text{m} ]

Now, substitute the values into the formula:

[ \text{Surface Area} = 2\pi(1.15 , \text{m})(3.34 , \text{m} + 1.15 , \text{m}) ]

Calculate ( h + r ):

[ h + r = 3.34 + 1.15 = 4.49 , \text{m} ]

Now, substitute ( r )

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