Question

What is the length of arc AB?
O 67 cm
O 127 cm
O 187 cm
O 367 cm

Answer 1

The length of an arc with π/3 radian angle and a radius of 18 cm is calculated as: 6π cm.

What is the Length of an Arc?

If we are given a circle with radius, r, and a radian angle, ∅, therefore, the length of an arc would be:

S = r∅

Given the following:

• r = 18 cm
• ∅ = π/3 radians

Length of arc = 18 × π/3 = 6π cm

In conclusion, the length of an arc with π/3 radian angle and a radius of 18 cm is calculated as: 6π cm.

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