those are not anything like common angles. Usually countersinks for flat head screws are 82 degrees. some countersinks do 90 degrees. And that's about all you see are 82 and 90 degree countersink bits.
100 degree and 130 degree countersinks are more often found in Aircraft flush fittings/bolts
Chat with our AI personalities
It is a 4 sided parallelogram
The compliment of a 100 degree angle is a 80 degree angle.
an Isosceles triange because that has two the same and one different.
Boner in your mouth
An obtuse angled isosceles triangle.