Question

prove that length of tangent from an external point to the circle are equal​

Answer 1

Answer:

Step-by-step explanation: hope it helps you.

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Answer 2

Step-by-step explanation:

GIVEN - AB & AC are tangents to a circle with center O and Angle OBA = ANGLE OCA = 90°

TO PROVE - AB = AC

PROOF -

In ∆AOB & ∆AOC,

AO = AO (COMMON)

OB = OC (RADIUS)

ANGLE OBA = ANGLE OCA (90° EACH)

Therefore , ∆AOB is congurent to ∆AOC

Then , AB = AC (CPCT)