Question

find the surface area of each figure. Round off answers to the nearest hundredth , if necessary , at least answer the first one , please

Answer 1

Given : Different Figures of cylinders with Radius & Height

To find : Surface Area of cylinder

Solution:

Surface Area of cylinder = 2πrh +  2πr²

= 2πr (h + r)

Q 1 -

r = 6mm   h = 8 mm

Surface Area =  2π(6) (6 + 8)

= 168π

using π = 22/7

= 168 * 22/7

= 24 * 22

= 528 mm²

Q 2 - r = 8mm   h = 12 mm

Surface Area =  2π(8) (8 + 12)

= 320π

using π = 3.14

=320 * 3.14

= 1004.8 mm²

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Answer 2

part 1 surface area =528mmsquare