Question

which of these angels cannot be constructed using ruler and compasses​

Answer 1

Answer:

here's ur answer dude

Step-by-step explanation:

But as we can't form angle of 20 ° with help of compass , So we can't form angle of 5 ° , 10 ° , 20 ° , 40 ° , 50 ° , 70 ° , 80 ° , ... with the help of compass . those angles which do not come in the divisibility series of 360/2or3 cannot be made with the help of compass or ruler.

hope it helps