The radius of a circle is 1. What is the length of an arc that subtends an angle of a radians?

1 unit

Step-by-step explanation:

We have the following formula to find the length of an arc that subtends an angle of radians is:

S = rΘ where:

r is the radius Θ is the subtended central angle given in radians

Given the information in this question, we have:

r = 1 unit Θ = a radian

=> the length of an arc in this question is:

1*1 = 1 unit

Hope it will find you well