Question

What is the length of arc AB? 6π cm 12π cm 18π cm 36π cm

Answer 1

Answer:

6π cm

Attached is the missing image

Step-by-step explanation:

The circumference of a circle can be expressed as;

C = 2πr

The length of an arc with angle ∅ (in radian) can be expressed as;

Arc Length = radius × radian angle

L = r∅

Given; from the attached image

Radius r = 18 cm

Radian angle ∅ = π/3 radians

Substituting the values;

Arc length L = 18cm × π/3 = 18/3 π cm

Arc length L = 6π cm