Question

two circles with centre at C1 and C2 intersect at P and Q through p a line l is drawn parallel to C1C2 intersecting the circle with centre at C1 and C2 at A and B respectively show that AB=2C1 C2​

Answer 1

Answer:

Step-by-step explanation:

Draw OL ⟂ CD and O'B ⟂ CD

Now, OA ⟂ CD

⇒ OA ⟂ CD

⇒ CA = AP = 1/2 AP

⇒ CP = 2AP ...i)

Similarly, O'B ⟂ CD

⇒ O'B ⟂ CD

⇒ PB = BD = 1/2 PD

⇒ PD = 2PB ...ii)

Also, CD = CP + PD

= 2AP + 2PB = 2(AP + PB) = 2AB

CD = 2OO' [∵ OABO' is a rectangle

Hope it help you

Answer 2

Answer:

Step-by-step explanation: