in the given figure if aq=4 cm qr= 7 cm ds =3cm then find the value of x
Answers
Answer:
6cm
Step-by-step explanation:
this question figure is this nd this question correct option is (a) 6
Given:
PQRS is a quadrilateral with the circle circumscribed, where AQ = 4cm, QR = 7cm, DS = 3cm
To Prove:
the value of x
Solution:
Since, the tangents from an external point are equal
So, DS = SC = 4cm [the value of DS = 3cm is given]..(i)
AQ = QB = 3cm [the value of AQ = 4cm is given]
Now, we find the measure of BR by subtracting BQ from QR
∴ BR = QR - BQ
BR = 7 - 4
BR = 3cm
So, now BR = CR = 3cm [since the tangents from an external point are equal]..(ii)
Also, SD = SC =3cm [tangents from an external point are equal]
Then, we find the value of x which is SR
Now, SR = SC + CR
Using (i) and (ii) we substitute the values
x = 3 + 3
x = 6cm
Therefore, the value of x or SR is 6cm.