Q.

The sum of angles of a concave quadrilateral is:

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a

Question Image

b

Question Image

c

Question Image

d

None of these 

answer is A.

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Detailed Solution

Concept- Concave quadrilaterals have one angle that would be greater than 180°.
Concave quadrilaterals have at least one diagonal that extends partially or entirely outside of the figure.
The sum of the interior angles of any polygon (convex or concave) with n sides is Question Image.
Thus, the sum of angles of a concave quadrilateral will be Question Image.
Hence, the correct answer is option 1.
 
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