Subject :IMO Class : Class 7
In the figure (not drawn to scale), ABC and DEF are two triangles, CA is parallel to FD and CFBE is a straight line. Find the value of x + y.
A 185°
B 134°
C 148°
D 176°
Ans 1:
Class : Class 8
C
Ans 2:
Class : Class 8
A is incorrect. Answer = c.
Ans 3:
Class : Class 9
Ans a is correct because: x = 51 (corresponding angles)y = 83 51 (ext. angle property of triangle)y= 134x y = 51 134 = 185Read the question properly