Question

11. A tangent has been drawn to a circle of radius 6cm from an external point 10 cm away from centre. The length of tangent is​

Answer 1

Answer:

Since tangent is perpendicular to the radius through the point of contact

∴ ∠OTP=90∘

In right triangle OTP, we have

OP2=OT2+PT2

⇒ 102=62+PT2

⇒ PT2=100−36=64

⇒ PT=8cm

Hence, length of tangent is 8 cm.

Answer 2

Step-by-step explanation:

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