the sum of the expanded angle is 180⇒

The names PNM and MPN are perfectly valid. The order of the letters doesn't matter. In fact, there are 6 ways to name this plane if we just use the 3 letters. If we include "plane Z", then there are 7 total ways to name the plane.
For some reason, your teacher wants P to be the third letter as s/he mentioned MNP and NMP. But again, the order doesn't matter.
Answer:
Option B:

Step-by-step explanation:
Given
Centre = (h,k) = (4,1)
Radius = r = 2
The standard equation of circle is:

Putting the values of h,k and r

Hence, the correct option is option B

Tamam hocam nasılsınız hocam ben bir şey var ya bir insan değilim ki bir şey olmaz sen kaç gibi müsait olur musunuz diye bir
Answer:
Step-by-step explanation:
sin36=h/75
h=75sin36
h=44.08ft