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frez [133]
4 years ago
10

The dartboard represented below has 3 circular areas with point values of 10, 6, and 4 points. The radii of the circles are 3 in

ches, 6 inches, and 9 inches. Which is closest to the area of the region that is worth 4 points?
226 in.^2
63 in.^2
113 in^2
141 in.^2
Please! If you could at least find the formula to do this problem that would be great.

Mathematics
2 answers:
Kitty [74]4 years ago
6 0

Answer:

141 in²

Step-by-step explanation:

Outer circle - middle circle

3.14 × (9² - 6²)

3.14 × 45

141.3 in²

Zinaida [17]4 years ago
4 0

Answer:

141 in.^2

Step-by-step explanation:

First find the area of the full circle

The radii is 9 inches

A = pi r^2

A = 81 pi

Then find the area of the  next smallest circle which is 6 inches

A = pi r^2

A = 36 pi

Subtract the difference to get the area of the blue

81pi - 36 pi

45 pi

45 * 3.14

141.3

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<h2>Answer:</h2>

13.391 ft

<h2>Explanations:</h2>

The schematic diagram of the given question is shown below;

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\begin{gathered} tan\theta=\frac{opposite}{adjacent} \\ tan40^0=\frac{h}{10} \\ h=10tan40 \\ h=10(0.8391) \\ h=8.391ft \\  \end{gathered}

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1 year ago
What is the solution to this inequality x-7&lt;1
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