Chapter 10 Vocab

Question 1

Triangle formula

Answer 1

1/2bh

Question 2

Square formula

Answer 2

s^2

Question 3

Parallelogram formula

Answer 3

bh

Question 4

Rectangle formula

Answer 4

bh

Question 5

Rhombus formula

Answer 5

1/2d1d2

Question 6

Kite formula

Answer 6

1/2d1d2

Question 7

Trapezoid formula

Answer 7

1/2h(b1+b2)

Question 8

Regular polygon

Answer 8

1/2Pa

Question 9

Circle formula

Answer 9

πr^2

Question 10

Area of a sector

Answer 10

n/360πr^2

Question 11

Base of a parallelogram

Answer 11

can be any one of its sides

Question 12

Altitude of a parallelogram

Answer 12

segment perpendicular to the line containing that base, drawn from the side opposite the base

Question 13

Height of a parallelogram

Answer 13

the length of a altitude (perpendicular to the base) to the line containing that base

Question 13

Height of a trapezoid

Answer 13

perpendicular distance between the bases

Question 14

Radius of a regular polygon

Answer 14

distance from the center to a vertex

Question 15

Apothem

Answer 15

perpendicular distance from the center to a side

Question 16

Circle

Answer 16

the set of all points equidistant from a given point called the center

Question 17

Diameter

Answer 17

segment that contains the center of a circle and has both endpoints on the circle

Question 18

Radius

Answer 18

segment that has one endpoint at the center and the other on the circle

Question 19

Congruent circles

Answer 19

have congruent radii

Question 20

Central angle

Answer 20

an angle whose vertex is the center of the circle

Question 21

Semi circle

Answer 21

half of a circle

Question 22

Arc

Answer 22

part of a circle, measure in degrees

Question 23

Minor arc

Answer 23

smaller then a semicircle

Question 24

Major arc

Answer 24

larger then a semi circle

Question 25

Adjacent arcs

Answer 25

arcs of the same circle that have exactly one point in common

Question 26

Circumference

Answer 26

distance around the circle

Question 27

Pi

Answer 27

the ratio of the circumference of a circle to its diameter

Question 28

Concentric circles

Answer 28

coplanar circles that have the same center

Question 29

Arc length

Answer 29

fraction of the circumference, length

Question 30

Sector of a circle

Answer 30

region bounded by an arc of the circle and two radii to the arcs endpoint

Question 31

Segment of a circle

Answer 31

part of a circle bounded by an arc and the segment joining its endpoints

Question 32

Geometric Probability

Answer 32

points on a segment or in a region of a plane represent outcomes and the geometric probability of a event is a ratio that involves geometric measures such as length or area

Question 33

Probability and Length

Answer 33

Point S is on segment AD is chosen at random. The probability that S is on segment BC (on AD) is the ratio of the length BC to the length of AD

Question 34

Probability and area

Answer 34

Point S in region R is chosen at random. The probability that S is in region N (in R) is that ratio of the area of region N to the area of region R