Linda throws a dart that hits the square shown below:

A square is drawn. A circle of radius 9 units touches the sides of the square.

What is the probability that the dart hits a point in the circle?

18%
21.5%
78.5%
81%

Question

Linda throws a dart that hits the square shown below:

A square is drawn. A circle of radius 9 units touches the sides of the square.

What is the probability that the dart hits a point in the circle?

 18%
 21.5%
 78.5%
 81%

anonymous · Answer

attachment

anonymous · Answer

@TheSmartOne  Anyone?

mathstudent55 · Answer

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mathstudent55 · Answer

You need to find the area of the square and the area of the circle.

anonymous · Answer

cOuld u  help me with that i thought my answer was going to be 21.5%

mathstudent55 · Answer

Since you know the dart hit the square, the total outcome is the area of the square.
The desired outcome is the area of the circle.

$P(hitting~ the ~circle) = \dfrac{area~of~circle}{area~of~square} $

mathstudent55 · Answer

The square has a half side of 9 units.
What is the side of the square? What is x in the figure below?
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