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What is cos 45º? See picture for more details ​

What is cos 45º? See picture for more details ​
asked 125k views
3 votes
What is cos 45º?
See picture for more details ​

What is cos 45º? See picture for more details ​-example-1
asked
User Heinob
by
7.7k points

2 Answers

5 votes

Answer:

C.

Explanation:

answered
User IPValverde
by
8.3k points
2 votes

Answer:

C. 1/√2

Explanation:

cos∅ is adjacent over hypotenuse:

cos45° = 1/√2

cos45° = √2/2

Alternatively, if you learned and memorized your unit circle, cos(π/2) = √2/2

answered
User Nick Parsons
by
8.2k points
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