Question

A circle of radius 6 cm. From an external point 10 cm away from its centre. What is the length of tangent drown on the circle from external point?


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Answer 1

Answer:

8cm

Step-by-step explanation:

Let the external point be A

Center be O

Point of tendency be B

AO = 10cm (given)

OB = 6cm ( Radius)

Angle OBA = 90

By using pythagoras Theorem..

AO² = AB² + OB²

100 = AB² + 36

100 - 36 = AB²

64 = AB²

$\sqrt{64 } = AB \\ 8 = AB = tangent$

Answer 2

Answer:

64 = ab^2

Step-by-step explanation:

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