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In Fig., if AB = AC, prove that BE = EC - CBSE Class 10 - Mathematics

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Question

In Fig., if AB = AC, prove that BE = EC

Solution

Since tangents from an exterior point to a circle are equal in length.

∴ AD = AF [Tangents from A]

BD = BE [Tangents from B]

CE = CF [Tangents from C]

Now,

AB = AC

⇒ AB – AD = AC – AD [Subtracting AD from both sides]

⇒ AB – AD = AC – AF [Using (i)]

⇒ BD = CF ⇒ BE = CF [Using (ii)]

⇒ BE = CE [Using (iii)]

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Solution In Fig., if AB = AC, prove that BE = EC Concept: Circles Examples and Solutions.
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