Subject :IMO Class : Class 9

Which of the following options is INCORRECT?

A An angle of 52.5º can be constructed.

B A triangle *ABC* can be constructed in which *AB* = 5 cm, ∠*A* = 45º and *BC + AC* = 5 cm.

C A triangle *ABC* can be constructed in which *BC* = 6 cm, ∠*C* = 30º and *AC* – *AB* = 4 cm.

D A triangle *ABC* can be constructed in which ∠*B* = 60º, ∠*C* = 45º and *AB + BC + AC* = 12 cm.

how can b be the answer pls help