Question

If the figure QR is a common tangent to give circle which meet at T. tangent at T meets QR at P. if QR = 3.8 cm, then find length of QR​

Answer 1

Answer:

This is your answer

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Answer 2

Step-by-step explanation:

Lengths of the tangents drawn from an external point to a circle are equal.

∴QP = PT = 3.8cm ..(i)

PR = PT = 3.8cm ..(ii)

From equations (i) and (ii):

QP = PR = 3.8cm

But, QR = QP+PR

∴QR = 3.8+3.8

QR = 7.6cm