Question

In a circle of diameter 40cm, the length of a chord is 20cm.find the length of minor arc of the chord.​

Answer 1

Answer:

di. of the circle = 40 cm

then rad. = 20 cm

now chord = 20cm

the triangle formed is an equilateral triangle with each side = 20cm

Θ = 60°

now length of the arc is I = rΘ

= 20(60°*п(pi) /180°)

= 20π/3cm