## Nick2019 Area of A circle one year ago one year ago

1. Nick2019

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2. Nick2019

the large cirlce has a radius of 6

3. Nick2019

the small circles are congruent

$Area = \pi r^{2}$ just plug in the values

5. Nick2019

@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

This is the diameter, so radius will diameter/2

7. Nick2019

@Soumyadeep so it wil be 3

yes

9. Nick2019

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10. Nick2019

@Soumyadeep is this the same thing?

which are you want to compute?

12. Nick2019

SHaded region the inside of that small triangle @Soumyadeep

since its an equilateral triangle, the small triangle inside the big one will have sides each equal to x

14. Nick2019

so its 2

15. Nick2019

@Soumyadeep so its 2?

16. Nick2019

@Soumyadeep how do you do this? also find the area of a square inscribed in a circle of radis x

17. Nick2019

@Soumyadeep plz help this is my last question then i gtg to school

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