Q39 of 160 Page 144

The sum of angles of a concave quadrilateral is

Sum of interior angles of a quadrilateral = 3600 for both concave and convex quadrilateral.

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37

If the adjacent angles of a parallelogram are equal, then the parallelogram is a

 38

Which of the following can be four interior angles of a quadrilateral?

 40

Which of the following can never be the measure of exterior angle of a regular polygon?

 41

In the figure, BEST is a rhombus. Then the value of y-x is