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Can someone please explain each step in solving this?

Can Someone Please Explain Each Step In Solving This class=

Sagot :

m(<Q) = 90; m(<P) = 12; m(<x) = 180 - 90 - 12 => m(<x) = 78.    a.


m(,q) 90

m(,p) 12

m(,x) 180-90-12