Question

From an external point P, tangents PA and PB are drawn to a circle with centre O. Atone
point E on the circle tangent is drawn, which intersects PA and PB at C and D
respectively. If PA = 14 cm, find the perimeter of APCD.​

Answer 1

Step-by-step explanation:

Answer

From the graph, we find some conclusion-

PA=PB=10cm

CE=CA

DE=DB

Perimeter of ΔPCD is,

=PC+PD+CD

⇒PC+PD+CE+ED

⇒PC+PD+CA+DB

⇒(PC+CA)(PD+DB)

⇒PA+PB

⇒10+10

⇒20 cm.

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