Compound Angle

A right triangle is a

• A triangle with an obtuse triangle

• A quadrilateral with one right angle

• A triangle with one right angle

• A triangle with two right angles

 $\sin\theta=$  

•  $\frac{opposite}{hypotenuse}$  

•  $\frac{hypotenuse}{opposite}$  

•  $\frac{adjacent}{hypotenuse}$  

•  $\frac{opposite}{adjacent}$  

Tags

CCSS.HSG.SRT.C.6

The ratio in a right triangle of adjacent to hypotenuse is _____

• sine
• cosine
• tangent
• inverse cosine

Tags

CCSS.HSG.SRT.C.6

Please choose the correct sum and difference formula:
sin (α-β) =

• sin α cos β + cos α sin β
• sin α cos β - cos α sin β
• cos α cos β - sin α sin β
• cos α cos β + sin α sin β

sin (360° + x) =

• cosx

• sinx

• -cosx

• -sinx

cos (360° + x) =

• cosx

• sin(-x)

• -sinx

• -cosx

cos (180° + x) =

• cosx

• sinx

• -sinx

• -cosx

sin (180° - x) =

• sinx

• -sinx

• cosx

• cos(-x)

sin (180° + x) =

• cosx

• cos(-x)

• sinx

• -sinx

cos (-x)=

• sinx

• sin(-x)

• cosx

• -cosx