Nick2019 2 years ago Area of A circle

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

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

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