One of the most important and exam oriented question from Chapter name- circles
Topic – Angle properties of circles
Chapter number- 15
In this question Two concentric circles are of the radii 13 cm and 5 cm are given. And we have to find the length of the chord of the outer circle which touches the inner circle.
ICSE Avichal publication
Understanding ICSE Mathematics
Question 4, exercise 15.3
Solution:
Two concentric circles with centre O
OP and OB are the radii of the circles respectively, then
OP = 5 cm, OB = 13 cm.