Question

LANGLES
119
2. ABCD is a quadrilateral in which AD = BC and
DAB = CBA (see Fig. 7.17). Prove that
1) A ABDEABAC
(1) BD=AC
(ii) ZABD = ZBAC.
B
Fig. 7.17
AD and BC
Pau
line​

Answer 1

All letters are quadillater so

suppose power of 1 letter is 4 so it can be possible

B = 4 , D = 4 so , 4×4 = 16

according to that

A = 4 , C = 4 so , 4×4 = 16

both are equal because all letters are quadillater

just like that DAB =CBA