Circles

# Circles

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Hello sir,

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please share the solution to this problem

Ohh thank you. The question says to find the length of tangent from the center of one circle to the other, I thought it meant from one center to the other center. The question wasn't clear to me.

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Q1) Two circles of radii 14 and 22 units are 45 units apart at the centers. What is the length of their common internal tangent?

Q2) A square whose area is 64 is partitioned into four congruent smaller squares. Find the circumference of the circle that passes through the centers of the four subsquares.

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Sir, how do we know that angle CAB is 60°?

Or if I put it in different term- how do we know that triangle ABC is an equilateral triangle?

AC and  AB are circular arcs so

AC = AB = BC = r ( Radii )

Hence , ABC is an equilateral triangle .

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o is the centre of the circle please provide the solution

This post was modified 1 year ago 2 times by TG.Raman
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In the rectangle ABCD , the perpendicular bisector of AC divides the longer side AB in a ratio 2:1 . Then the angle between AC and BD is?

Sir the figure is troubling me

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Hi sir, please share the solution

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Join E - A and D - A

the angle formed ( EAD ) will be 30º

So the angle formed by the side of the square  at center = 60º

Hence,  Equilateral triangle

Radius = Side of the square = 2

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Sir, can you help me with the diagram of this question? I'm not able to visualize or draw the diagram.

AB and CD are perpendicular to a diameters of Circle O. Let CM be a chord that intersect AB at E, so that CE=6 and EM =5. Find the circumference of the circle.

This post was modified 1 year ago by Richa

This problem is similar to the question of the day : 25

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