First ask what name comes to mind when you hear the word complementary…complement. Ask who can you give a complement to? Can you give a complement to your grandmother on her 90th birthday? What about on her 180th birthday?

Perfect! So, you can only give complements to 90 year old grandmothers, thus, complementary angles can only by 90 degree angles.

## 3 comments:

cool technique

i'll use this to remember for my test

Supplement Stacks tend to be a great way to achieve your objectives in a fast time period.

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