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TOEFL IBT - Math

This vocabulary will be useful for a math course in school, for expanding your English vocabulary, or especially for any number of English language exams you may take. Here we will look at the most commonly used words in the field, along with their French translations.

 

average

a number that represents the characteristics of a data set

Smokers, he notes, are on average poorer than nonsmokers.

la moyenne

bisect

to divide into two congruent parts

The border between the city and its suburbs bisects the bay.

couper en deux

circle

the set of points in a plane that are a fixed distance from a given point

They make a circle, join hands, and sing happy birthday.

le cercle

circumference

the distance around a circle

Assuming the Earth is spherical, its circumference spans 360 degrees.

la circonférence

congruent

figures or angles that have the same size and shape

Then, there exist two color classes that form congruent polygons.

congruent

cube

a solid figure with six square faces

When cooked, peel potatoes and cut into desired-size cubes.

le cube

data

information that is gathered

I have never experienced so much weak data on any subject.

les données

denominator

the bottom part of a fraction

The teacher says we need to find the least common denominator.

le dénominateur

diameter

the line segment joining two parts on a circle and passing through the center of the circle

Then start with smaller trees, about six inches in diameter.

le diamètre

difference

the result of subtracting two numbers

The difference of 7 and 4 is 3.

la différence

equation

a mathematical statement that says that two expressions have the same value

He also loves mathematics, and spends his free time solving equations.

l’équation

even number

a number that is divisible by 2

Sizes were listed as ranging in even numbers from 32 through 54.

le nombre pair

exponent

a number that indicates the operation of repeated multiplication

This formula is transparent when the exponents are converted to multiplication.

l’exposant

fraction

a number used to name a part of a group or a whole

We are talking tiny fractions of 1 percent of national income.

la fraction

graph

a type of drawing used to represent data

Easily adjusted, the forecast graph lets you explore financial possibilities.

le graphique

mean

in a data set, the average

The mean of 8, 10, and 12 would be 10.

la moyenne

median

the middle number in a data set when the data are put in order

By 1990 the median had dropped to $172,500.

la médiane

mode

the number that occurs most frequently in a set of data

The mode in the set {5, 6, 6, 7} is 6.

le mode

numerator

the top part of a fraction

This value is the biggest possible numerator for the relative error.

le numérateur

odd number

a number that is not divisible by 2

An even number of particles is more stable than an odd number.

le nombre impair

parallel

two lines that are in the same plane and never intersect

Place two parallel to each other, with space between them.

parallèle

percent

a fraction, or ratio, in which the denominator is assumed to be 100

For the quarter, they were down 2.5 percent.

pour cent

perpendicular

two lines are perpendicular if the angle between them is 90 degrees

Set perpendicular to the river, the library looks comparatively slick.

perpendiculaire

pi

the ratio of the circumference of a circle to its diameter; 3.14

For fun, he memorized the first 37 digits of pi.

le pi

polygon

a closed plane figure made up of several line segments that are joined together

These include vertices, edges, faces, polygons, and surfaces.

le polygone

radius

the distance from the center to a point on a circle

Widening my radius to 50 miles did not improve the results.

le rayon

rectangle

a quadrilateral with four 90-degree angles

Some are fish-shaped, others are more versatile rectangles.

le rectangle

right angle

an angle whose measure is 90 degrees

This right angle bends the steps into a shape resembling a staircase.

l’angle droit

square

a quadrilateral with four equal sides and four 90 degree angles

Plants three pots deep line the perimeter of this little square.

le carré

triangle

a three-sided polygon

According to height, I was the apex of the triangle.

le triangle

volume

a measurement of space, or capacity

Simmer until reduced in volume by half, about 10 minutes.

le volume

 

http://www.math.com/school/glossary/glossindex.html

https://eng.ichacha.net

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TOEFL IBT Vocabulary