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Bezzdna [24]
3 years ago
10

#4. Find the missing angle measures

Mathematics
2 answers:
baherus [9]3 years ago
4 0

Answer:

Step-by-step explanation:

x = 55

x + 55 = 110

x + 20 = 75

x + 65 = 120

liubo4ka [24]3 years ago
4 0

Answer:

x°=130°

The sum of two opposite angles in a quadrilateral is 180

⇒x+55°+x+65°=180°

⇒2x+120°=180°

⇒2x=60°

⇒x=30°

Có x+20 °+x°=180°

⇒30°+20°+x°=180°

⇒x°=130°

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