In the given figure, Diameter AB and a chord AC have acommon vertex.

1.	In the given figure, Diameter AB and a chord AC have acommon vertex. If thelength of AB=20 cm. andAC = 12 cm. How far is ACfrom the centre of the circle?
Answer» ong>Answer: DIAMETER of the circle =20cm so, RADIUS will be 10cm AC=12cm. so,AD =6CM. (PERPENDICULAR drawn from the centre of the circle bisects the chord) By Pythagoras theorem on ∆ADO AO²=AD²+OD² SO, OD=√100-36=√64=8cm ans

In the given figure, Diameter AB and a chord AC have acommon vertex. If thelength of AB=20 cm. andAC = 12 cm. How far is ACfrom the centre of the circle?

Answer»

ong>Answer:

DIAMETER of the circle =20cm so, RADIUS will be 10cm

AC=12cm.

so,AD =6CM. (PERPENDICULAR drawn from the centre of the circle bisects the chord)

By Pythagoras theorem on ∆ADO

AO²=AD²+OD²

SO, OD=√100-36=√64=8cm ans