11. a) Find the measure of x,y and z in the figure, where
l BC
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Answered by
1
Answer:
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Answered by
1
Step-by-step explanation:
x+y+z=180
o
75+x+45
o
=180
x=180−120
x=60
o
l∣∣BC so ∠z=45
o
45+60+y=180
o
y=180−105=75
o
.
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