Question

Two concentric circles are of radii 5cm and 3cm . find the length of the chord of the larger circle which touches the smaller circle​

Answer 1

Answer:

YOUR ANSWER MATE- 8CM

Explanation:

Let O be the centre of the concentric circle of radii 5 cm and 3 cm respectively. Let AB be a chord of the larger circle touching the smaller circle at P. 

Then

AP=PB and OP⊥AB

Applying Pythagoras theorem in △OPA, we have

OA2=OP2+AP2

⇒25=9+AP2

⇒AP2=16⇒AP=4 cm

∴AB=2AP=8 cm

Answer 2

Answer:

hiii tumi oxom r pora niki??????