Class 10 Maths · Circles · NCERT Exercise 9.4 · Question 11

Circles Hard

In Fig. 9.20,

O

is the centre of a circle of radius 5 cm,

T

is a point such that

O T = 13

and

O T

intersects the circle at

E

. If

A B

is the tangent to the circle at

E

, find the length of

A B

Fig. 9.20

Answer

Length of

A B = \frac{20}{3}

\approx 6.67

cm.

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