Unit7 Vocab Quiz

Match the following

• Linear Pair

• The angles that lie opposite to each other when two lines intersect

• Complementary Angles

• Either of two angles whose sum is 180°

• Vertical Angles

• A pair of adjacent angles formed when two lines intersect

• Supplementary Angles

• 1. Either of two angles whose sum is 90°

  
  

In a right triangle, while 10 degree angle's ​ (a)   ratio is 0.985 , 80 degree angle's ​ (b)   ratio is ​ 0.985. Because they are ​ (c)   angles. The one angle's adjacent leg is another one's ​ (d)  

• Adjacent Leg/ Hypotenuse
• Opposite Leg/Hypotenuse
• complementary
• opposite leg

Which mnemic below we use to memorize basic trigonometric ratios?

• SOH CAH TOA

• HOS CAH TOA

• SOH CAH OAT

• SOH HAC TOA

Match the following trig ratios

• Opposite Leg / Hypotenuse

• tangent

• Adjacent Leg / Hypotenuse

• sine

• Opposite Leg / Adjacent Leg

• cosine

Match the following definitions with their matching word

• Cosine

• ---

  of an acute angle in a right triangle

  is the ratio (quotient) of the length of the opposite leg to

  the length of the adjacent leg

• Tangent

• ---

  of an acute angle in a right triangle is the

  ratio (quotient) of the length of the opposite leg to the

  length of the hypotenuse

• Sine

• ---

  of an acute angle is the ratio (quotient) of the length of the adjacent leg to the

  length of the hypotenuse

Match the following definitions with the correct word

• Arcsine

• The ----------- of a positive number is the acute

  angle whose tangent is that number.

• Arccosine

• The --------- of a number between 0 and 1 is the

  acute angle whose sine is that number.

• Arctangent

• The ---------- of a number between 0 and 1 is the

  acute angle whose cosine is that number.

In the SOH CAH TOA mnemic, what SOH stands for?

In the SOH CAH TOA mnemic, what CAH stands for?

In the SOH CAH TOA mnemic, what TOA stands for?