murphyserenity21 murphyserenity21

13-03-2021
Mathematics

contestada

Help fast pls!!!!!

What is the surface area of the cylinder whose net is shown below? Use pi=3.

90 cm^2

72 cm^2

54 cm^2

63 cm^2

Help fast plsWhat is the surface area of the cylinder whose net is shown below Use pi390 cm272 cm254 cm263 cm2 class=

Respuesta :

16-03-2021

Answer:

Step-by-step explanation:

length of rectangle = circumference of circle = πd = 6π cm

area of rectangle = 2×6π = 12π cm

area of one circle = πr² = 9π cm²

surface area = 12π + 2(9π) = 30π ≅ 90 cm²

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