malsi123
malsi123 malsi123
  • 21-06-2021
  • Mathematics
contestada

In the figure, the area of the shaded region is 224π cm^2.
What is the value of x?

In the figure the area of the shaded region is 224π cm2 What is the value of x class=

Respuesta :

chhayhor03
chhayhor03 chhayhor03
  • 21-06-2021

Answer:

6330,24

Step-by-step explanation:

Answer Link
jimrgrant1 jimrgrant1
  • 21-06-2021

Answer:

x = 10

Step-by-step explanation:

x is the radius of the inner white circle

The area of the whole circle is

A = πr² = π × 18² = 324π cm²

The area of the shaded region = 224π cm²

Then the area of the white circle = 324π - 224π = 100π

Area of white circle = πx² = 100π ( divide both sides by π )

x² = 100 ( take the square root of both sides )

x = [tex]\sqrt{100}[/tex] = 10

Answer Link

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