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Alika [10]
2 years ago
6

A circle is inscribed in an equilateral triangle. A point in the figure is selected at random. Find the probability that the poi

nt will be in the shaded region.
about 60%

about 50%

about 30%

about 75%

Mathematics
1 answer:
liubo4ka [24]2 years ago
8 0

Answer:

The correct answer is first option 60%

Step-by-step explanation:

The radius of a circle is inscribed in an equilateral triangle with side a = a/2√3

<u>To find the area of equilateral triangle</u>

Here side be 'a'

Area of equilateral = √3a²/4

<u>To find the area of circle</u>

Here radius = a/2√3

Area = πr²

 = π(a/2√3)

 = 3.14a²/12

<u>To find the probability</u>

probability = area of circle/area of triangle

   = 3.14a²/12/ √3a²/4

   = 3.14/3√3

   = 0.6043 ≈ 60.43 %  60 %

The correct answer is first option 60%

 

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