Help me please!! I dont understand.

A) mJK = 21

B) mJNM = 159º

C) mKL = 159

D) mJKM = 201

E) mMKL = 339

Step-by-step explanation:

Circle = 360º

360º - 21º = 339º (what all missing angles have to add up to)

Assuming that:

JNL and KNM are both 180º angles

KJ and JM are supplementary as well as KL and LM

If we subtract 21º from 180º we get 159º which is both LM and KL

If we add 21º to 180º we get 201º which is both JKM and LMK

By subtracting 21º from 360º we know that MKL is 339ª

if we add 159º + 159º + 21º we get 339º which proves that those are our missing angles becuase our missing angles must make a total of 339º

Sorry that took so long I was pulling out all my notes from last year to make sure I was doing this right ^^;

in total they made   333.74 your welcome : d