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Oduvanchick [21]
3 years ago
15

A dart is thrown at The board shown. it hits the board at a random point. find the probability that it will land in the shaded r

egion. round to the nearest percent.
A. 17%
B.34%
C.20%
D. 25%

Mathematics
2 answers:
Furkat [3]3 years ago
7 0

Answer:

20%?

Step-by-step explanation:


Scorpion4ik [409]3 years ago
3 0

Answer:

Option A - 17%

Step-by-step explanation:

Given : A dart is thrown at The board shown. it hits the board at a random point.

To find : The probability that it will land in the shaded region. round to the nearest percent?

Solution :

First we find the total area of the circle,

Let r be the radius of the circle

So, Area of the circle is A=\pi r^2

Now, Shaded region is with angle 60°.

The area of shaded region is A_s=\frac{60}{360}\times\pi r^2      

The probability that dart will land in the shaded region is

\text{Probability}=\frac{\text{Shaded area}}{\text{Total area}}      

\text{Probability}=\frac{A_s}{A}    

\text{Probability}=\frac{\frac{60}{360}\times\pi r^2}{\pi r^2}

\text{Probability}=\frac{60}{360}    

\text{Probability}=\frac{1}{6}    

\text{Probability}=0.1666    

Into percentage, P=16.66% ≈ 17%.

Therefore, Option A is correct.

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