Question

Using the digits 0 to 9 ​

Answer 1

Supplementary Angles:

`\boxed{100°} and \boxed{80°}`

Arithmetically speaking, the closest 2 supplementary angles can get (in 3 and 2 digits respectively) is the upwritten.

Complementary Angles:

`\boxed{45°} and \boxed{45°}`

Simply, in this case, for angles to be numerically as close as possible - make both the angles 45°.