Question

how can i construct 80 degree

Answer 1

If you mean with a straightedge and a compass like the ancient Greeks, it’s impossible. The only trisect-able angles are multiples of 90 degrees. Here we’d need to trisect 240 degrees, not a multiple a ninety so not possible. Maybe it’s better to say if we could construct 80 degrees then we could trisect 240 degrees, which we know we can’t.

In general an integer number of degrees not a multiple of three is not a constructible angle

I hope this helps you.....

Answer 2

Answer:

Step-by-step explanation

Construct the line BC as 5 cm

Construct a semicircle arc there at B make 60 120 and 180 degree angle

With the help of 120 and 180 make 160

The half of 160 is 80

So

160 and at the point were u make a arc at that point cut an arc of 80°

Hope it helps y✌✌✌