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  • 25-09-2021
  • Mathematics
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Calculate the shaded area, give your answer to 2 significant figures.

Calculate the shaded area give your answer to 2 significant figures class=

Respuesta :

jimrgrant1 jimrgrant1
  • 25-09-2021

Answer:

A ≈ 43.7 cm²

Step-by-step explanation:

The shaded area (A ) is calculated as

A = area of outer circle - area of inner circle

  = π × 4.1² - π × 1.7²

 = π (4.1² - 1.7²)

 = π (16.81 - 2.89)

= π × 13.92

≈ 43.7 cm² ( to 3 significant figures )

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