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The angles of an irregular pentagon is x, 90, x, 150, x degrees.

Calculate the size of the largest angle.

1 Answer

4 votes

Answer:

x=130°

Explanation:

The sum of the angel of the pentagon is equal to 540°

X+90+x+150+x=540

3x+240=540

3x=540-150

3x=390

X=130

User SCBuergel
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