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Can someone please help me with something?

Find the surface area of the prism. 5 m, 12m, 9m. its rectangular

Also, Find the surface area of the cylinder to the nearest tenth of a square unit, 4cm, 12.4 cm.
I dont quite understand this unit, im bad a geometry, sorry.

3 answers

SA = 2(5 * 12) + 2(12 * 9) + 2(5 * 9)

https://www.mathsisfun.com/geometry/cylinder.html
Thank you Ms. Sue. You're the best ;p
You're welcome.
And thank you.
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