Nick2019
Area of A circle
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Nick2019
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|dw:1363617028530:dw|
Nick2019
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the large cirlce has a radius of 6
Nick2019
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the small circles are congruent
Soumyadeep
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\[Area = \pi r^{2}\]
just plug in the values
Nick2019
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@Soumyadeep can you help with this one to, its what is the area of a circle in which the longest possibale chord is 6in long
Soumyadeep
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This is the diameter, so radius will diameter/2
Nick2019
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@Soumyadeep so it wil be 3
Soumyadeep
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yes
Nick2019
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|dw:1363617467462:dw|
Nick2019
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@Soumyadeep is this the same thing?
Soumyadeep
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which are you want to compute?
Nick2019
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SHaded region the inside of that small triangle @Soumyadeep
Soumyadeep
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since its an equilateral triangle, the small triangle inside the big one will have sides each equal to x
Nick2019
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so its 2
Nick2019
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@Soumyadeep so its 2?
Nick2019
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@Soumyadeep how do you do this? also find the area of a square inscribed in a circle of radis x
Nick2019
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@Soumyadeep plz help this is my last question then i gtg to school
Soumyadeep
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the radius is x so diameter will be 2x
now
\[a^{2} + b^{2} = c^{2}\]
a = b because the sides of a square are equal, so
\[2a^{2} = (2x)^{2}\]
\[a = \sqrt{\frac{ 4x^{2} }{ 2 }}\]
and Area of a square = side x side