adambeauregard87 adambeauregard87
  • 03-06-2021
  • Mathematics
contestada

Find the perimeter of the semi circle window to the nearest tenth.
20 cm

Find the perimeter of the semi circle window to the nearest tenth 20 cm class=

Respuesta :

akposevictor
akposevictor akposevictor
  • 08-06-2021

Answer:

628.3 cm

Step-by-step explanation:

The window has a semicircle shape = half of a circle

Perimeter of the window = ½(πr²)

Radius (r) = 20 cm

Plug in the value

Perimeter of the window = ½(π*20²)

= ½(π*400)

Perimeter of the window = 628.31853 ≈ 628.3 cm (nearest tenth)

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