Asap a central angle θ in a circle with a radius of 3.5 centimeters intercepts an arc with a length of 6.3 centimeters. what is the radian measure of θ ? enter your answer, as a decimal, in the box.

By definition, the arc length is given by:
 S = r * θ
 Where,
 r: radio
 θ: central angle
 Clearing θ we have:
 θ = S / r
 Substituting the values we have:
 θ = 6.3 / 3.5
 θ = 1.8 radians
 
 the radian measure of θ is:
 θ = 1.8 radians

The third one i'm pretty sure