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- I researched Reference and Conterminal angels.
- Conterminal angels are angles with the same initial and terminal sides. However, the rotations could be different hence the co-terminal.
- Reference angel is the smallest positive acute angle formed by terminal side of the angle t and horizontal x axis. (Blitzer, 2021)

- Find the Reference angle of the following : I will find by adding or subtracting 360 from the given angle ,

=

- Find the Conterminal angle of the following : I will find by adding and or subtracting

or

- –

= +

- , first you need a common denominator to add or subtract.
- =

+=-=

- Find the following refence and conterminal angels:
- a.
- b. 450

Blitzer, R. F. (2021). *Precalculus (7th Edition).* Pearson Education (US).

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