Adv
deepaksoni
  • 0
Guru

Question 30. (a) In the figure (i) given below, PT is a tangent to the circle. Find TP if AT = 16 cm and AB = 12 cm.

  • 0

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

In this question it ia given that PT is a tangent to the circle.

And we have to find TP

It is also given that AT = 16 cm and AB = 12 cm.

ICSE Avichal publication
Understanding ICSE Mathematics
Question 30(a)

Share

1 Answer

  1. Solution:
    (a) PT is the tangent to the circle and AT is a secant.
    PT² = TA × TB
    Now TA = 16 cm, AB = 12 cm
    TB = AT – AB = 16 – 12 = 4 cm
    ∴ PT² = 16 + 4 = 64 = (8)²
    ⇒ PT = 8 cm or TP = 8 cm

    • -3
Leave an answer

Leave an answer

Browse

Choose from here the video type.

Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs".

Captcha Click on image to update the captcha.

Related Questions