Maths

Question 1

sin 0°

Answer 1

0

Question 2

sin 30°

Answer 2

1/2

Question 3

sin 45°

Answer 3

√2/2

Question 4

sin 60°

Answer 4

√3/2

Question 5

sin 90°

Answer 5

1

Question 6

sin =

Answer 6

opposite / hypotenuse

Question 7

cos =

Answer 7

adjacent / hypotenuse

Question 8

tan =

Answer 8

opposite / adjacent

Question 9

tan-1(opp/adj) is an example of how to find..

Answer 9

an angle

Question 10

tan30 = opp/adj is an example of how to find..

Answer 10

a side

Question 11

Density =

Answer 11

Mass/volume

Question 12

Cosine rule

Answer 12

a² = b² +c² - (2bcCosA)

Question 13

Cosine rule for angles

Answer 13

CosA = b² + c² - a² / 2bc

Question 14

Area of triangle using trigonometry

Answer 14

1/2abSinC

Question 15

Sine rule

Answer 15

SinA/a = SinB/b = SinC/c

Question 16

x² - 25 factorised

Answer 16

(x+5)(x-5)

Question 17

Quadratic formula

Answer 17

−b ± √b² −4ac
_____________
2a

Question 18

Tan30

Answer 18

1/√3

Question 19

Tan 45

Answer 19

1

Question 20

Tan60

Answer 20

√3

Question 21

Cos30

Answer 21

√3/2

Question 22

Angle at centre theorem

Answer 22

The angle at the centre is twice the size the angle at the circumference

Question 23

The angle in a semi - circle is

Answer 23

A right angle

Question 24

Angles in the same segments are

Answer 24

Equal

Question 25

Opposite angles in a cyclic quadrilateral..

Answer 25

Sum up to 180°

Question 26

Relationship between a tangent and a radius

Answer 26

They are perpendicular

Question 27

Angles in alternate segments are

Answer 27

Equal

Question 28

Tangents from a point are

Answer 28

Equal

Question 29

Conditions for congruent triangles

Answer 29

SSS
ASA
SAS
RHS

Question 30

When are triangles similar?

Answer 30

When all the angles are the same but the sides are different sizes

Question 31

What are bearings?

Answer 31

3 digit angles measured in a clockwise direction from north

Question 32

How to prove if 3 points are collinear

Answer 32

• The vectors are parallel
• The vectors share a common point

Question 33

Mutually exclusive events

Answer 33

Events that cannot happen together

Question 34

Independent events

Answer 34

Events whose outcomes do not affect each other

Question 35

Population

Answer 35

A whole group being studied

Question 36

Sample

Answer 36

A collection taken from a larger group

Question 37

Stratified sampling

Answer 37

Using the ratios between a given sample and population to create a new sample

Question 38

Upper quartile is equal to

Answer 38

75%

Question 39

Lower quartile is equal to

Answer 39

25%