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Inessa05 [86]
4 years ago
14

A tan is shaped as a sector of a circle radius 12cm with the angle 110 at the centre calculate the area of the fan

Mathematics
1 answer:
blsea [12.9K]4 years ago
8 0

Answer:

≈ 138.2 cm²

Step-by-step explanation:

The area (A) of the sector of the circle is calculated as

A = area of circle × fraction of circle

   = πr² × \frac{110}{360}

   = π × 12² × \frac{110}{360}

   = 144π × \frac{110}{360}

   = \frac{144(110))\pi }{360} ≈ 138.2 cm² ( to 2 dec. places )

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