Demarcusclincy
05.09.2020 •
Mathematics
If mPQR = 141°, find the measure of PQS.
(13x + 4)
[10x - 1)
Solved
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Ответ:
DEC = 142
CEF = 38
Step-by-step explanation:
DEC + CEF = DEF
11x - 12 + 2x + 10 = 180
13x -2 = 180
+2 +2
13x = 182
13 13
x = 14
DEC = 11x - 12
DEC = 11(14) - 12
DEC = 154 - 12
DEC = 142
CEF = 2x + 10
CEF = 2(14) + 10
CEF = 28 + 10
CEF = 38