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Find the value of y 74 77 89 96

Find the value of y 74 77 89 96-example-1
User Jahller
by
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1 Answer

5 votes
The external angle (53°) is half the difference of the intercepted arcs (y°, 180°), so we have
53 = (180 - y)/2
106 = 180 - y
y = 180 - 106
y = 74

The appropriate choice for the value of y is ...
74
User Speller
by
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