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If a circle is inscribed in a square of...

If a circle is inscribed in a square of side 10, so that the circle touches the four sides of the square internally then radius of the circle is

A

10

B

`5sqrt(2)`

C

`10sqrt(2)`

D

5

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The correct Answer is:
D
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AAKASH SERIES-CIRCLES-EXERCISE -I
  1. If x - y + 1 = 0 meets the circle x^(2) + y^(2) + y - 1 = 0 at A a...

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  2. If the lines x-2y+3=0, 3x+ky+7=0 cut the coordinate axes in concylic p...

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  3. If a circle is inscribed in a square of side 10, so that the circle t...

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  4. The power of (1,1) with respect to the circle x^(2)+y^(2)-4x+3y+k=0 i...

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  5. The equation of the circle with centre (3,2) and the power of (1,-2) w...

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  6. If a line is drawn through a point A(3,4) to cut the circle x^(2)+y^(2...

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  7. A chord through P cut the circle x^(2)+y^(2)+2gx+2fy+c=0 in A and B an...

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  8. A chord of length 24 units is a distance of 5 units from the centre of...

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  9. The equation of a circle with centre (4,1) and having 3x+4y-1=0 as tan...

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  10. The intercept made by the circle x^(2)+y^(2)-4x-6y-3=0 on the line x+y...

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  11. The length of the tangent from (1,1) to the circle 2x^(2)+2y^(2)+5x+3y...

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  12. If P is a point such that the ratio of the squares of the lengths of t...

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  13. The locus of the point from which the length of the tangent to the cir...

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  14. The equation of the tangent to the circle x^(2)+y^(2)-4x+4y-2=0 at (1...

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  15. The tangent to the circle x^(2)+y^(2)-4x+2y+k=0 at (1,1) is x-2y+1=0 t...

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  16. The equation of the tangents to the circle x^(2)+y^(2)=25 with slope 2...

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  17. The equation of the tangents to the circle x^(2)+y^(2)=4 which are par...

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  18. The point of contact of y=x+3sqrt(2) with x^(2)+y^(2)=9 is

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  19. The circle to which two tangents can be drawn from origin is

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  20. The equation of the normal to the circle x^(2)+y^(2)+6x+4y-3=0 at (1,-...

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