Question

Fill in the blanks
The surface area of a solid cylinder of radius 2.0 cm and height 10.0 cm is equal to ...
(mm)2

Answer 1

See the formula for surface area of a solid cylinder is: 2πRH
where R=radius of the cylinder
H=height of cylinder

So after calculating it, we get: 2*3.14*2*10 cm² = 125.6 cm²
As you want the answer in mm² read ahead,
1 cm=10 mm
As we have square units, 1cm*1cm=10mm*10mm
i.e. 1cm²=100mm²
Now substitute this in the above result we get: 125.6 * 100 mm² = 12560 mm²

Answer 2

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1.5 × 104 mm2

I hope, this will help you

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