In the figure below, AB is a diameter of the circle. Chord PQ intersects AB at N. A tangent to the circle at B and meets...

In the figure below, AB is a diameter of the circle. Chord PQ intersects AB at N. A tangent to the
circle at B and meets PQ produced at R.

Given that PN = 14 cm, NB = 4 cm and BR = 7.5 cm, calculate the length of;
a) NR
b) AN

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Kavungya answered the question on November 8, 2019 at 14:12

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