A chord is 4cm from the centre of a circle of radius 7cm. Calculate (a)the angle subtended by the chord at the centre (b) the length of the minnor arc cut off by the chord

Answer 1

Did you make your sketch?
let Ø be half the central angle, or the angle at the centre for the triangle
cosØ = 4/7
Ø = appr 55.15°
so the central angle is 110.30°

circumference = 2πr = 14π

minor arc/14π = 110.3/360
minor arc = ....

Answer 2

Please solution is not complete

Answer 3

please I want the answer