Question 31. PAB is secant and PT is tangent to a circle (i) PT = 8 cm and PA = 5 cm, find the length of AB. (ii) PA = 4.5 cm and AB = 13.5 cm, find the length of PT.

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deepaksoniGuru

Asked: April 17, 20212021-04-17T07:55:08+05:30 2021-04-17T07:55:08+05:30In: ICSE

One of the most important and exam oriented question from Chapter name- circles
Topic – Angle properties of circles
Chapter number- 15

In this question a secant PAB and a

tangent PT to a circle are given

Also it is given that (i) PT = 8 cm and PA = 5 cm,

Now we have to find the length of AB

(ii) PA = 4.5 cm and AB = 13.5 cm,

Now we have to find the length of PT.
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Understanding ICSE Mathematics
Question 31

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AAREKH · Answer 1 · 2021-04-17T11:08:18+05:30

AAREKH Guru

Solution:
∵ PT is the tangent and PAB is the secant of the circle.
ML Aggarwal Class 10 Solutions for ICSE Maths Chapter 15 Circles Ex 15.3 Q30.4