Which of the following statement(s) given below is / are TRUE?

A: Sum of exterior angle of triangle is less than the sum of exterior angle of a quadrilateral.

B: Sum of interior angles of a polygon is (n – 1) × 90° (‘n’ is number of sides.)

C: Interior angle of regular polygon is 72°, then measure of its corresponding exterior angle is 108°. 
1. A
2. C
3. B
4. A and B

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