Iron rods a, b, c, d, e and f are making a design in a bridge as shown in Fig. 5.47, in which a ||b, c ||d, e || f. Find the marked angles between
(i) b and c
(ii) d and e
(iii) d and f
(iv) c and f

If a, b, c, d, e, f are in A.P., then e – c is equal to

If a,b,c,d,e,f are in ..., then e-c is equal to

Seven boys A, B, C, D, E, F and G are stand in a straight line as follows : (i) C is standing between A and G. (ii) B is standing to the left of E. (iii) G is standing between C and E. (iv) D and F are to the right of C. Who is standing exactly in the middle ?

Six persons A, B, C, D, E and F are standing in a circle. B is between F and C. A is between E and D. F is to the left of D. Who is between B and D?

Amisha makes a star with the help of line segments a, b, c, d, e and f, in which a || d, b || e and c || f. Chhaya marks an angle as 120^(@) as shown in Fig. 5.48 and asks Amisha to find the anglex, angley and anglez . Help Amisha in finding the angles.