Answer:
Step-by-step explanation:
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15
GH = (BC + FE) /2
9x-3 = (19+ 5x+1) /2
2* (9x-3) = 19+ 5x+1
18 x - 6 = 5x + 20
13x = 26
x = 2
GH = 9*2 - 3 = 15
Use your CASIO calculator and put inverse SIN of 8/15
Best regards
the answers are a, b, and c.
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