Question

today is my exam please help me solve Q.3's all questions

Answer 1

1) 4 pairs (ab, bc) (bc, cd) (cd,da)(da, ab
2) 2 pairs (ab, cd) (ad, bc)
3)4 pairs angle (a, b) (b, c) (c, d) (d, a)
4) 2 pairs angle(a, c) (b, d)

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Answer 2

Here is your answer

1 . Four (AB , BC) ; (BC , CD) ; (CD , DA) ; (DA , AB)

2. Two (AB , DC ) ; (AD , BC)

3. Four (A , B ) ; (B , C) ; (C , D) ; (D , A) (put the sign of angle )

4. Two (A , C ) ; (B , D) ( put the sign of angle )