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goblinko [34]
4 years ago
8

Help me please its worth it plssssss helpp

Mathematics
2 answers:
pshichka [43]4 years ago
5 0
The sum of all the angles in a trapezoid/trapezium is 360°.

90° + 60° + 150° + 3x = 360°

300° + 3x = 360°

3x = 360° - 300°

3x = 60°

x = 60°/3

x = 20°

Hope this helps!
Ede4ka [16]4 years ago
3 0

Answer:

3x=60°

Step-by-step explanation:

3x°+90°+60°+150°=360°

3x°+300°=360°

3x°=60°

x=20°

3x=20×3=60°

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