Answer this and get 50 points.

As shown in picture,

NP = NM = PQ

=> 2 triangles PNM and NPQ are isosceles

=> angle NMP = angle NPM => arc NP = arc NM

=> angle NQP = angle QNP => arc PQ = arc NP

=> arc NP = arc NM = arc PQ

Otherwise, we have:

arc NP + arc NM + arc PQ + arc MQ = 360 deg

(sum of all arcs on a circle)

=> 3 x arc NP + 120 = 360

=> arc NP = 240/3 = 80 deg

Hope this helps!

:)

90°

Step-by-step explanation:

A line from O to the midpoint of the chord makes a 90°

½NP = (180 - 90)/2 = 45

NP = 90

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3