anabri anabri
  • 13-03-2017
  • Mathematics
contestada

How do I find the degrees

How do I find the degrees class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 04-07-2019

Answer:

  x = 135°

Step-by-step explanation:

The angle x is the same fraction of 360° that the shaded area is of the area of the circle.

The area of a circle is given by the formula ...

  A = πr²

For a radius of 12 cm, the area of the circle is ...

  A = π(12 cm)² = 144π cm²

Then the measure of angle x is ...

  x = (54π cm²)/(144π cm²)×360°

  x = 135°

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