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Question 39. (a) In the figure (i) given below, AB is a chord of the circle with centre O, BT is tangent to the circle. If ∠OAB = 32°, find the values of x and y

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This is the basic and conceptual question from Chapter name- circles
Topic – Angle properties of circles
Chapter number- 15

In this question we have a figure in which it is given that , AB is a chord of the circle with centre O, BT is tangent to the circle.

Also ∠OAB = 32°,

Now using these facts we have to find the values of x and y

ICSE Avichal publication
Understanding ICSE Mathematics
Question 39(a)

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1 Answer

  1. Solution:
    AB is a chord of a circle with centre O.
    BT is a tangent to the circle and ∠OAB = 32°.
    ∴ In ∆OAB,
    OA = OB (radii of the same circle)
    ML Aggarwal Class 10 Solutions for ICSE Maths Chapter 15 Circles Ex 15.3 Q39.3

    =116/2=58

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