Trigonometry Basics

You can only use the Trigonometry formulas on a right-angled triangle !

• True

• False

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CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

 $\sin\ \theta\ =\ \frac{opposite}{?}$  

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CCSS.HSG.SRT.C.6

The trigonometry ratios can be remember by ....

• SinCosTan

• SOCAHTOA

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CCSS.HSG.SRT.C.6

SOHCAHTOA can stand for

(you can click as many as you think are right)

• Some Old Horse Can Always Hear Their Owners Approach

• Silly Old Harry Chased A Horse Through Our Attic

• Two Old Angles Skipped Over Heaven Carrying Ancient Harps

• Some Old Hags Cant Always Hide Their Old Age

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CCSS.HSG.SRT.C.6

 $?\ \theta\ =\ \frac{Adjacent}{Hypotenuse}$  

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CCSS.HSG.SRT.C.6

 $Tan\ \theta\ =\ \frac{?}{Adjacent}$  

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CCSS.HSG.SRT.C.6

Which trigonometric function would be used for this Triangle

• Tan

• Cos

• Sin

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CCSS.HSG.SRT.C.6

Which trigonometric function would be used for this Triangle

• Tan

• Cos

• Sin

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CCSS.HSG.SRT.C.6

Which trigonometric function would be used for this Triangle

• Tan

• Cos

• Sin

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CCSS.HSG.SRT.C.6

 $\sin\ \theta=\frac{Opposite}{Hypotenuse}$  

The answer for a is

• 26.80 cm

• 6.00 cm

• 2.68 cm

• 0.60 m

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CCSS.HSG.SRT.C.8