mathematics

Question 1

What is the formula for the area of a rectangle?

Answer 1

Area = Length x Width.

Question 2

What is PI (π)?

Answer 2

Pl is a constant (3.1416) and is the ratio of the circumference to the diameter of any circle.

Question 3

What is the formula for the circumference to the diameter of any circle?

Answer 3

C = π x D.

Question 4

What is the formula for the area of a circle?

Answer 4

A = π R^2.

Question 5

What is the formula for the volume of a cylinder?

Answer 5

V = π R^2H (height of the cylinder).

Question 6

What is the formula used for finding the volume of a rectangle?

Answer 6

V = L x W x H

Question 7

What is the root of a number?

Answer 7

The root of a given number is the base number that when multiplied by itself one or more times will
produce the given number. (E.g. the root of 4 is 2; 2 x 2 = 4)

Question 8

Give examples of perfect square numbers.

Answer 8

4, 9, 16, 64, 100, 144, etc. 36

Question 9

What is a squared number?

Answer 9

A number that is multiplied by itself. For example, the square of two is four (2x2=4).

Question 10

How do you express a decimal as a percent?

Answer 10

Move the decimal two places to the right and add the percent sign. For example, .75 is 75%, or .375 is 37.5%.

Question 11

Using the powers of ten, how may 1,000,000 be expressed?

Answer 11

Ten to the sixth power. 10^6

Question 12

What is scientific notation?

Answer 12

Representing very large or small numbers using powers of 10.

Question 13

What is the sum of a large negative number and a small positive number?

Answer 13

Subtract the smaller number from the larger number and use the sign of the larger number in the answer.

Question 14

Name at least two ways a ratio may be expressed.

Answer 14

As a fraction (7/8); by the use of a colon (7:8); by the word “to” (7 to 8)

Question 15

What is a proportion?

Answer 15

A ratio that describes the relation between two objects of different dimensions (3:4=6:8).

Question 16

How do you divide one fraction by another?

Answer 16

Using cross multiplication.

Question 17

What is a right angle, obtuse angle, and acute angle?

Answer 17

A right angle is an angle of 90°, an obtuse angle is an angle greater than 90°, and an acute angle is
an angle of less than 90°.

Question 18

What is a quadrant?

Answer 18

It is one quarter of a circle.

Question 19

What is a polygon?

Answer 19

A closed shape that is made up of three or more sides.

Question 20

What is a parallelogram?

Answer 20

A four sided object with two parallel sides (trapezoid).

Question 21

What is the hypotenuse of a triangle?

Answer 21

It is the long side that is opposite of the 90’ angle.

Question 22

What is a mixed number?

Answer 22

It is a whole number followed by a fraction (21/2).

Question 23

How can a decimal number be changed to a fraction?

Answer 23

Multiply the decimal value by the desired denominator; the result will be the numerator of the fraction.

Question 24

What is a trapezoid?

Answer 24

A quadrilateral (a four-sided shape) having one pair of parallel sides.

Question 25

What is the procedure for dividing one fraction by another fraction?

Answer 25

Invert the divisor and multiply the numerators together and the denominators together

Question 26

What is a key step to perform in preparing to add or subtract unlike fractions?

Answer 26

Find their lowest common denominator

Question 27

What is the procedure for converting a fraction into a decimal?

Answer 27

Divide the numerator by the denominator.

Question 28

What is an equilateral triangle?

Answer 28

A triangle with three equal sided.

Question 29

What is the procedure for converting a fraction into percent?

Answer 29

Divide the numerator by the denominator, move the decimal point over two places in the quotient,
and affix a percent symbol.

Question 30

What is a ratio?

Answer 30

The compare of two numbers or quantities.

Question 31

Name three of the six types of triangles?

Answer 31

(1) Equilateral, (2)Isosceles, (3)Acute, (4)Right, (5)Obtuse, (6)Scalene