Question

The figure shows a sector with rasius 16 cm and chord AB=12 cm.
(a) Find the area of triangle OAB.
(b) Find 13 years ago

Answer 1

@terenzreignz @Callisto @goformit100 @Meepi

Answer 2

Ok. so the first drop a perpendicular from O to AB.



Since a perpendicular line drawn from centre to the chord bisects the chord,

AC = CB = 6 cm.

Now in triangle OCA, AC = 6cm and OA = 16 cm.

I'll show further working in next comment -