The radius of the circle is 8 cm. The distance of a point lying outside the circle from the centre is 17 cm. Find the length of the tangent drawn from the outside point to the circle.

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Given:
- Radius of the circle (r) = 8 cm
- Distance of the point from the center (d) = 17 cm

We need to find the length of the tangent from the point to the circle.

According to the tangent-secant theorem or by using the right triangle formed by the radius, tangent, and the line joining the center to the external point:

Length of tangent (t) = sqrt(d^2 - r^2)

Calculating:
 t = sqrt(17^2 - 8^2) = sqrt(289 - 64) = sqrt(225) = 15 cm

Therefore, the length of the tangent is 15 cm.

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