Question

In circle O, what is m? 50° 55° 125° 250°

Answer 1

Answer:

b.

Step-by-step explanation:

Answer 2

Answer:

The measure of angle JAM is 55°

Step-by-step explanation:

The correct question is

Find the measure of angle JAM

See the attached figure to better understand the problem

step 1

Find the measure of angle JAK

we know that

The measure of the inner angle is the semi-sum of the arcs comprising it and its opposite.

so

m∠JAK=(1/2)[arc KJ+arc LM]

substitute the given values

m∠JAK=(1/2)[170°+80°]=125°

step 2

Find the measure of angle JAM

we know that

m∠JAK+m∠JAM=180° ------> by supplementary angles

we have

m∠JAK=125°

substitute

125°+m∠JAM=180°

m∠JAM=180°-125°=55°