Question

How do you find an angle with a positive measure and an angle with a negative measure that are coterminal with `-80^circ`?

Answer 1

`280^@, -440^@`

Explanation:

Given: `-80^@`

To be a coterminal angle, you only need to add or subtract multiples of `360^@`:

`-80^@ + 360^@ = 280^@`

`-80^@ - 360^@ = -440^@`