Ch 16: Trigonometry Flashcards by Dana Ellis

Q

Both the sin and cos of 45° equal…

A

….about 0.7.

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Q

The tan of 45° equals…

A

1

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Q

sin 30°

A

½ = 0.5

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Q

sin 60°

A

0.85 or…

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Q

sin 90°

A

1

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Q

cos 30°

A

~0.85 or…

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Q

cos 60°

A

½ = 0.5

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Q

cos 90°

A

0

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Q

tan 30°

A

~0.6

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Q

tan 60°

A

~1.7

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Q

tan 90°

A

not defined

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Q

√3

A

~1.7

(1.732…..)

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Q

√2

A

~ 1.4

(1.414….)

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