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)
Solution:
![ML Aggarwal Class 10 Solutions for ICSE Maths Chapter 15 Circles Ex 15.3 Q39.3](https://www.learninsta.com/wp-content/uploads/2018/08/ML-Aggarwal-Class-10-Solutions-for-ICSE-Maths-Chapter-15-Circles-Ex-15.3-Q39.3.png)
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)
=116/2=58