angles
congruent
similar
classifications
trig functions
100
A pair of opposite angles formed by intersecting lines.
What are vertical angles?
100
Write the congruency statement.
CAB is congruent to RPQ
C=R
A=P
B=Q
100
Set up a proportion for the following similar triangles:
(15/5)=(9/3)=(?/4)
100
Classify the triangle:
Obtuse Isosceles
(one angle greater than 90o, 2 congruent sides)
100
The trig function that is defined as opposite over hypotenuse.
What is SINE?
200
A pair of angles that add up to 180 degrees.
What are supplementary angles?
200
Are these two triangles congruent? If so, by what shortcut?
Congruent by SSS
200
Are the following triangles similar? If so, by what shortcut (AA or SSS)?
Similar by AA.
200
Classify the triangle:
Right Scalene
(one right angle, no congruent sides)
200
This trig function is defined as opposite over adjacent.
What is TANGENT?
300
A pair of angles that adds up to 90 degrees.
What are complementary angles?
300
Are these two triangles congruent? If so, by what shortcut?
Congruent by SAS.
300
Are the following triangles similar? If so, by AA or SSS?
Similar by SSS.
scale factor of 1.4
300
Classify the triangle:
acute equilateral
(all sides & angles are congruent)
300
What are trig ratios used to solve for? What are inverse trig ratios used to solve for?
Trig ratios are used to solve for a side in right triangles and inverse trig ratios are used to solve for an angle in right triangles.
400
A pair of angles that form a line and add up to 180 degrees.
What is a linear pair?
400
Are these two triangles congruent? If so, by what shortcut?
Congruent by ASA.
400
Are the following triangles similar? If so, by SSS or AA?
Not similar
25/20=1.25
20/16=1.25
22/18=1.22
400
What type of triangle has an angle greater than 90o?
Obtuse triangle
400
What trig ratio do you need to use to solve for BC? What is the length of BC?
Cosine
BC = 1.71
500
The sum of all angles in a triangle.
What is 180 degrees?
500
Which of the following do not show triangles are congruent?
SSS . AAA
ASA . SAS
AAS . SSA
AAA & SSA
500
The following triangles are similar. Find the missing side.
x=14
500
What type of triangle has all 3 angles less than 90o?
Acute triangle.
500
Solve for the measure of angle B.
angle B = 56.25 degrees