Discuss with colleagues and IITians> Circles with radii 3, 4 and 5 touch each ...

Circles with radii 3, 4 and 5 touch each other externally if P is the point of intersection of tangents to these circles at their points of contact. Find the distance of P from the points of contact.

John Doe , 10 Years ago

Grade 12th pass

1 Answers

Arun Kumar

Last Activity: 10 Years ago

Hello Student,

Let A, B, C be the centre of the three circles.
=>P is the in–centre of the ∆ABC

=>r=∆/s=root((s−a)(s−b)(s−c) /s)

=>2s=7+8+9=24

=>s=12

r=root5

Thanks & Regards
Arun Kumar
Btech, IIT Delhi
Askiitians Faculty

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Discuss with colleagues and IITians> Circles with radii 3, 4 and 5 touch each ...

Circles with radii 3, 4 and 5 touch each other externally if P is the point of intersection of tangents to these circles at their points of contact. Find the distance of P from the points of contact.

John Doe , 10 Years ago

Arun Kumar

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