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Question

What will be the sum of all angles of a convex polygon which has 7 number of sides?

A
900o
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B
780o
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C
820o
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D
800o
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Solution

The correct option is A 900o
Sum of Interior Angles =(n2)180o
Here n = Number of side =7
Sum of interior angles =(72)×180o=900o

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