Respuesta :

Answer:

[tex] \bf \large 20 \: inches [/tex]

Step-by-step explanation:

Given that :

  • The radius of a circle is 2.9 in.

to find :

  • Find the circumference to the nearest tenth.

formulas used :

  • circumference = 2 × π × r

where,

  • π = 22/7
  • r = 2•9 inches

explanation :

⟼ c = 2πr

⟼ c = 2 × 22/7 × 2•9 inches

⟼ c = 2 × 3•14 × 2•9 inches

⟼ c = 6•28 × 2•9 inches

⟼ c = 18•21 inches.

Round to the nearest tenth :

⟼ c = 18•21 inches

⟼ c = 20 inches

∴ circle circumference is 20 inches .

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