3 years ago

Help me please, It's not 20 or 75

Mathematics

1 answer:

jenyasd209 [6]3 years ago

3 0

A+B+C+D+E=540°

4X+5+7X+6X+10+5X-5+4X+10=540

26X = 520

X = 520 : 26 = 20°

E = 4X + 10 = 80 + 10 = 90 °

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2 years ago

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