4. If m23 = 54º, find the measure of each missing angle.

m27=

km212 =

12

1114

a. m21 -

b. m22 =

13

m 28

I. m

13 =

c. m24 =

1. m29

m. m214 =

d. m25 =

m210 =

e. m26 =

j. m211 =

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