Refer to the figure below and mark all statements that are true. a.) if the measure of θ is 1 radian, then the arc length is 2r. b.) the ratio of arc length to r is always equal to π. c.) if the measure of θ is 60°, then the arc length is r. d.) if the ratio of the arc length to r is 1, then the measure of θ is 1 radian.

D is true.

Step-by-step explanation:

We will use the formula for arc length (in radians) for this problem.

Arc length (s) =

Where

A.

Arc length with measuring 1 and radius r is:

So, not 2r, as stated. So A is false.

B.

Ratio of arc length to r is:

So, it's not , B is false.

C.

Arc length, when and radius is r:

So, C is false.

D.

Setting up ratio of arc length to r as 1 and solving for :

D is right.

answer: a

step-by-step explanation:

if xy ~ yz therefore xy would be the same length as yz