Exploring Mathematics Chapters 5-7

Question 1

used ratios to find the heights of buildings

Answer 1

Thales

Question 2

the orbit of Haley’s comet is of this shape

Answer 2

ellipse

Question 3

Doubling the length, width, and height of a box gives it a volume

Answer 3

eight times as great

Question 4

the first part of the name means over or beyond

Answer 4

hyperbola

Question 5

ancient Greek who worked out a way to show large numbers that he called myriads

Answer 5

Archimedes

Question 6

2L + 2W

Answer 6

perimeter of a rectangle

Question 7

The sum of the _______________ of the legs of a right triangle are equal to the _______________ of the hypotenuse.

Answer 7

squares, square

Question 8

Ah

Answer 8

Volume

Question 9

The prefix bi means

Answer 9

two

Question 10

discovered that the sum of the 3 angles of any triangle is 180 degrees

Answer 10

Pythagoras

Question 11

Mathematics is sometimes called the ___ of science

Answer 11

handmaiden

Question 12

S²

Answer 12

area of a square

Question 13

4S

Answer 13

perimeter of a square

Question 14

all points are the same distance from the center

Answer 14

circle

Question 15

a mirror of this shape will focus sunlight

Answer 15

parabola

Question 16

proved planets follow elliptical orbits

Answer 16

Johannes Kepler

Question 17

∏r²

Answer 17

area of a circle

Question 18

L x W

Answer 18

area of a rectangle

Question 19

a polygon with three sides and one right angle

Answer 19

right triangle

Question 20

Of the prefixes giga, mega, and tera, the one that has the greatest value is

Answer 20

tera

Question 21

Does a billion have the same meaning in England and United States?

Answer 21

no

Question 22

wrote Elements of Geometry

Answer 22

Euclid

Question 23

is not a polygon

Answer 23

circle

Question 24

The Egyptian knotted rope was used to measure out

Answer 24

a triangle with a right angle

Question 25

a quadrilateral with opposite sides parallel and equal in length

Answer 25

rectangle

Question 26

A whispering gallery has a shape like

Answer 26

ellipse

Question 27

a rectangle with four equal sides

Answer 27

square

Question 28

a polygon with five sides

Answer 28

pentagon

Question 29

___ introduced the use of place value and the numeral 0 to Europe.

Answer 29

Leonardo Fibonacci