Midterm Chapters 1-6

Question 0

Circumference of a circle

Answer 0

2 pie r

2 diameter

Question 1

Area of a circle

Answer 1

Pie r squared

Question 2

Inductive reasoning

Answer 2

Not based on facts. Based on observations

Question 3

Deductive reasoning

Answer 3

Based on facts and data

Question 4

Classify by sides

Answer 4

Scalene
Isosceles
Equilateral

Question 5

Classify by angles

Answer 5

Acute
Obtuse
Right
Equiangular

Question 6

Midsegment Theorem

Answer 6

The two inside lines are parallel (find slope) and longer one is twice the length of the shorter one (find length)

Question 7

Point of concurrency

Answer 7

Intersection of the lines, rays, or segments

Question 8

Circumcenter

Answer 8

Intersection of the perpendicular bisectors
Acute: inside
Right: on triangle
Obtuse: outside triangle

Question 9

Incenter

Answer 9

Intersection of angle bisectors, form right angles with sides
Lines connected to sides congruent

Question 10

Median

Answer 10

From angle bisectors to midpoint of sides
Short one is 2/3 the length
No right angle

Question 11

Altitude

Answer 11

From vertex straight down, forming right angle not at midpoint