2 years ago

Help me I need the answer on paper help me now

Mathematics

1 answer:

ElenaW [278]2 years ago

6 0

Answer:

x = 144

Step-by-step explanation:

Angle sum of heptagon = 900

5x + 90 + 90 = 900
5x + 180 = 900
5x + 180 - 180= 900 - 180
5x = 720
Divide both sides by 5
x = 144

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