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KATRIN_1 [288]
1 year ago
9

Find the area of the shaded region in the figure below, if the radius of the outer circle is 4 and the radius of the inner circl

e is 2. Keep your answer in terms of π.
Mathematics
1 answer:
denis-greek [22]1 year ago
5 0

TheThe  area of the shaded region  if the radius of the outer circle is 4 and the radius of the inner circle is 2 is 12π.

<h3>Area of the shaded region</h3>

Area of a circle = πr²

r =radius of the circle

Area of the outer circle:

Area of the outer circle = π(4)²

Area of the outer circle = 16π

Area of the inner circle:

Area of the inner circle = π (2)²

Area of the inner circle = 4 π

Area of the shaded Region :

Area of the shaded Region = 16π - 4 π

Area of the shaded Region = 12π

Therefore the  area of the shaded region  if the radius of the outer circle is 4 and the radius of the inner circle is 2 is 12π.

Learn more about area of the shaded region here: brainly.com/question/19577281

#SPJ1

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I did the math on a print screen to explain the cross multiply.

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bija089 [108]
To solve this, set up two equations using the information you're given. Let's call our two numbers a and b:
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Now you can solve for the two numbers.
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3) Using b = 10, plug it back into one of the equations to find the value of a. I'll plug it back into the first equation:
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