Unit7 Vocab Quiz

Match the following

• Complementary Angles

• A pair of adjacent angles formed when two lines intersect

• Vertical Angles

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

• Supplementary Angles

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

  
  

• Linear Pair

• Either of two angles whose sum is 180°

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

• cosine

• Opposite Leg / Adjacent Leg

• tangent

• Adjacent Leg / Hypotenuse

• sine

Match the following definitions with their matching word

• Sine

• ---

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

  length of the hypotenuse

• 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 adjacent leg

• 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 hypotenuse

Match the following definitions with the correct word

• Arcsine

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

  acute angle whose sine is that number.

• Arccosine

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

  angle whose tangent 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?