choccocake2500
choccocake2500 choccocake2500
  • 18-02-2020
  • Mathematics
contestada

Find surface area please

Find surface area please class=

Respuesta :

gcantiga44
gcantiga44 gcantiga44
  • 18-02-2020

Answer:

131.88 cm²

Step-by-step explanation:

The surface area of a cylinder is 2πr² + 2πrh

Since the figure we are dealing here is a quarter of a cylinder, divide the equation by 4.

New equation =

[tex]\frac{2\pi r^{2}+2\pi rh}{4}[/tex]

We know:

r = 6 cm

h = 8 cm

Now substitute the values and solve:

[tex]\frac{2(3.14)(6)^{2} +2(3.14)(6)(8)}{4}[/tex]

[tex]\frac{226.08+301.44}{4}[/tex]

[tex]\frac{527.52}{4}[/tex]

= 131.88 cm²

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