Subject :IMO Class : Class 5

ABCD is a square of perimeter 56 m. Two triangular corners have been cut away as shown in figure. What is the perimeter of the remaining figure?

A 39 m

B 42 m

C 35 m

D 53 m

Answer is 47.8. All given answers are wrong. Triangles AEF and FBG are right angled triangles hence EF and FG need to be calculated using Pythagoras.