Math, asked by santoshkkammar, 2 months ago

If the length of the Tangent drawn to circle from a point of 5 cm away from the center is 4cm

Its Diameter is _​

Answers

Answered by sravsprathap2005
0

Answer:

9-(ot)^2

answer is 3 cm

Step-by-step explanation:

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Answered by SalviTiwari
2

Answer:

AB is a tangent drawn on this circle from point A.

The length of a tangent from a point A at distance 5 cm from the centre of the circle is 4 cm. Find the radius of the circle.

∴ OB ⊥ AB

OA = 5cm and AB = 4 cm (Given)

In ΔABO,

By Pythagoras theorem in ΔABO,

OA2 = AB2 + BO2

⇒ 52 = 42 + BO2

⇒ BO2 = 25 - 16

⇒ BO2 = 9

⇒ BO = 3

∴ The radius of the circle is 3 cm.

Diameter =6cm

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