Question

4. Make an obtuse angled triangle ABC with an angle = 120° and sides AB and AC containing
this angle to be both equal to 4 cm. On AC, construct another equilateral triangle ACD
Is BCD a right angled triangle?​

Answer 1

Answer:

yes first one can be a triangle

the second one it is not possibe because in an equlateral triangle each side consists of 60 degree