rhineharttori
13.11.2020 •
Mathematics
I please need help finding the value of x.
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Ответ:
x = 7
Step-by-step explanation:
If DF = FE , then m∠D = m∠E ⇒ 5x = 3x + 14
2x = 14 ⇒ x = 7
Ответ:
40 because 3+6+12 = 21 and 8+11+21 =40