Exploring Trigonometry in Right Angled Triangles

What mnemonic is used to remember trigonometric formulas?

• SOA TOA

• PEMDAS

• FOIL

• LOCI

Tags

CCSS.HSG.SRT.C.8

Which sides are considered active when given the hypotenuse and looking for the adjacent?

• Opposite and Hypotenuse

• Adjacent and Opposite

• Hypotenuse and Adjacent

• Adjacent and Adjacent

Tags

CCSS.HSG.SRT.C.6

What formula is used when both the adjacent and hypotenuse are active sides?

• Cosine

• Cotangent

• Tangent

• Sine

Tags

CCSS.HSG.SRT.C.6

How do you isolate 'D' in the equation when solving for a side using cosine?

• Divide by cos(29)

• Multiply by 7.8

• Subtract 7.8

• Add cos(29)

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

What is the rounded value of 'D' when using the cosine formula?

• 7.0 cm

• 6.7 cm

• 6.8 cm

• 6.9 cm

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which formula is used when given the adjacent and looking for the opposite?

• Secant

• Cosine

• Sine

• Tangent

Tags

CCSS.HSG.SRT.C.6

What is the result of 3.1 * tan(38) when solving for side 'T'?

• 2.5 m

• 2.6 m

• 2.4 m

• 2.3 m

Tags

CCSS.HSG.SRT.C.8

What is the 'Old Switcheroo' technique used for in trigonometry?

• To switch the given side with the side you're solving for

• To switch the trigonometric formula

• To switch the angle with the side

• To switch the numerator and denominator

Tags

CCSS.HSG.SRT.C.8

How do you solve for 'y' when it is the hypotenuse and under division in the sine formula?

• Multiply both sides by sin(64)

• Perform the 'Old Switcheroo'

• Subtract 17.3 from both sides

• Divide both sides by 17.3

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

What is the importance of practicing finding missing sides in triangles using trigonometry?

• To understand geometry better

• To prepare for calculus

• To improve memory

• To become comfortable with the process

Tags

CCSS.HSG.SRT.C.8