amckinney22003
amckinney22003 amckinney22003
  • 20-04-2020
  • Mathematics
contestada

what is the area of the shaded region?

what is the area of the shaded region class=

Respuesta :

devishri1977
devishri1977 devishri1977
  • 20-04-2020

Answer:

125.6 cm²

Step-by-step explanation:

Area of circle = πr²

Area of shaded region = Area of outer circle - area of the inner circle

= 3.14*7*7 - [3.14*3*3]

= 153.86 - 28.26

= 125.6 cm²

OR

= 3.14 * 7 * 7 - [3.14*3.*3]

= 3.14* [7² - 3²]

= 3.14* (7+3)(7-3)  

= 3.14* 10 * 4

= 125.6 cm²

Answer Link
sofia1851
sofia1851 sofia1851
  • 20-04-2020
125.6 is the answer pls give me brainlest
Answer Link

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