Answered

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The radius of a semicircle is 3 kilometres. What is the semicircle's perimeter?

Sagot :

chetankachana

Answer:

In terms of Pi: [tex]3\pi + 6[/tex] km

Exact value (rounded): 15.42477 km

Approximated (3.14): 15.42 km

Step-by-step explanation:

Hello!

A semicircle's perimeter can be found using the formula: [tex]P = \pi r + 2r[/tex]

We can plug in the values to solve for the perimeter.

Solve

  • [tex]P = \pi r + 2r[/tex]
  • [tex]P = \pi(3)+ 2(3)[/tex]
  • [tex]P = 3\pi + 6[/tex]

In terms of Pi, it is [tex]3\pi + 6[/tex],

Exact value of Pi, it is 15.42477

Approximation of Pi (3.14), it is = 15.42

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