Question

in circle of diameter 66cm, the length
of chord
is 33cm. Find the length of
minor arc of chord
.​

Answer 1

Answer:

33 cebtimetre is the answer

Answer 2

Answer:

11π cm

Step-by-step explanation:

circumference      radius

=diameter×π        =66÷2

=66π cm              =33 cm

a specific diameter of circle is the perpendicular bisector of chord, Let them intercept at A

(for the diameter which perpendicular to chord, it cuts the chord into two equal parts)

Let center be O

Let the interception of chord and circumference be B

where OAB=90°

sinAOB=AB÷BO=16.5÷33=0.5      *16.5is half of chord*

    AOB=30°

length of arc=circumference×AOB×2÷360°

                     =66π×30°×2÷360°

                     =11π cm