dnienenz
dnienenz
19-04-2022
Mathematics
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Question 5
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nhin2482004
nhin2482004
19-04-2022
mA= 120
mC= 45
Because the triangle has total 180
So 12x+12+15+3x+18=180
So x=9
Subtitute for equation
12x9+12=120
3x9+18=45
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