Asked by Victor

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
Answered by Reiny
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 = ....
Answered by Benedict
Please solution is not complete
Answered by prisca
please I want the answer
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