geometry_20150709194448

Question 1

What do triangle proportion allow you to find?

Answer 1

missing sides or angles

Question 2

When the lines are parallel the sides are…

Answer 2

proportional

Question 3

When the sides are proportional the lines are…

Answer 3

parallel

Question 4

If two figures are similar and their perimeter ratio is 2/4 what is their area ratio?

Answer 4

4/16

Question 5

What is a scale drawing?

Answer 5

a drawing that is smaller/larger than the objects real size

Question 6

In a triangle, what do parallel lines create?

Answer 6

equal proportion

Question 7

What is a dilation?

Answer 7

transformation that changes an object’s size but not its shape

Question 8

What is a scale factor?

Answer 8

description of how much the figure has enlarged or reduced

Question 9

How could you find a triangle side on the coordinate plane

Answer 9

distance formula

Question 10

Which postulates prove similarity?

Answer 10

SSS or SAS

Question 11

What is the distance formula?

Answer 11

square root of (x2-x1)squared + (y2-y1) squared

Question 12

What is the pythagorean theorem?

Answer 12

a2+b2=c2

Question 13

What happens if a + b are less than c?

Answer 13

it does not form a triangle

Question 14

What are the two special right triangle?

Answer 14

45/45/90 and 30/60/90

Question 15

What are the sides of the 45/45/90?

Answer 15

1, 1, radical 2 (hypotenuse)

Question 16

What are the sides of the 30/60/90?

Answer 16

1 (across from 30 degree angle), 2 (hypotenuse)m and radical 3 (across from 60 degree angle)

Question 17

What are some of the pythagorean triples?

Answer 17

(3,4,5)(5,12,13)(7,24,25)(8,15,17)

Question 18

What is cosine?

Answer 18

adjacent leg/ hypotenuse

Question 19

What is tangent?

Answer 19

opposite leg/adjacent

Question 20

What are trigonometric ratios used for?

Answer 20

finding missing parts of right triangles

Question 21

What do you do if you want to find the angle of a right triangle?

Answer 21

inverse of a trigonometric ratio

Question 22

What do you use for non right triangle?

Answer 22

law of sines

Question 23

What is sine?

Answer 23

opposite leg/ hypotenuse

Question 24

How do you find the surface area of triangles?

Answer 24

1/2 bh

Question 25

How do you find the surface area of a circle?

Answer 25

pie x (radius) square

Question 26

What is a net?

Answer 26

diagram of the surfaces pf a 3-D shape

Question 27

What is a cross section?

Answer 27

cutting a 3-D figure and seeing what shape it forms

Question 28

What is a face?

Answer 28

a flat surface

Question 29

What is a vertex (in 3-D shapes)?

Answer 29

point on which three or more faces intersect

Question 30

How do you find the volume of prisms and cylinders?

Answer 30

bh

Question 31

How do you find the volume of pyramids and cones?

Answer 31

bh/3

Question 32

How do you find the volume of a sphere?

Answer 32

4(pie) (radius) squares

Question 33

How do you find the surface area of squares, rectangles, and parallelograms?

Answer 33

bh

Question 34

What is an element?

Answer 34

member of a set

Question 35

What is a subset?

Answer 35

set made of elements from another set

Question 36

What is an intersection?

Answer 36

set of all elements AND another set (overlap)

Question 37

What is a union?

Answer 37

set made from all elements in one OR another set OR both

Question 38

What is a complement?

Answer 38

set made up of all elements not in a set

Question 39

What is a null set/ empty set?

Answer 39

set with no elements

Question 40

What is random?

Answer 40

no pattern for one occurrence but a definite fraction over large number

Question 41

What does theoretical mean?

Answer 41

probability based on how things are expected

Question 42

What is an outcome?

Answer 42

anything that occurs within the limits if what is being measured

Question 43

What is a sample space?

Answer 43

set of all possible outcomes

Question 44

What is an event?

Answer 44

subset of the sample space

Question 45

How do you solve for a AND b in probability?

Answer 45

a x b

Question 46

How do you solve for a OR b in probability?

Answer 46

a + b

Question 47

What is mutually exclusive?

Answer 47

no intersection

Question 48

What is non mutually exclusive?

Answer 48

intersection

Question 49

What is a set?

Answer 49

any group of items