mickeyscuteselff
mickeyscuteselff mickeyscuteselff
  • 18-02-2020
  • Mathematics
contestada

The radius of a cylinder is 3x – 2 cm. The height of the cylinder is x +3 cm. What is the
surface area of the cylinder? Use the formula A = 23r+ 2 x rh.

Respuesta :

bhuvna789456
bhuvna789456 bhuvna789456
  • 19-02-2020

Surface Area of the cylinder is 6x² + 83x - 58 cm²

Step-by-step explanation:

  • Step 1: Given surface area of the cylinder, A = 23r + 2rh. Here, r = (3x - 2) and h = (x + 3)

⇒ A = 23(3x - 2) + 2(3x - 2)(x + 3)

⇒ A = 69x - 46 + (6x² + 18x - 4x - 12)

⇒ A = 6x² + 83x - 58 cm²

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