Year10 1st Exam

Question 1

How many triangles in a 8 sided shape ?

Answer 1

6

Question 2

How do you find the number of triangles in a shape ?

Answer 2

Number of sides minus 2 times 180

Question 3

What do all exterior angles add up to ?

Answer 3

360

Question 4

What letter is used for the term corresponding and what do angles on this letter do

Answer 4

Letter = F

angles are all the same on this

Question 5

What is the letter for co-interior and what do angles do on this letter

Answer 5

Letter= c

Angles add to 180

Question 6

What term does the letter Z represent and what do angles do on this letter

Answer 6

Alternate

Angles are the same

Question 7

Define what a bearing is

Answer 7

Bearings are a measure of direction Taken from north

Question 8

How would you solve 2a+4=10

Answer 8

First you would minus the +4 on each side which would give you 2a=6 then you would divide both sides by two to get a so a would equal 3

Question 9

What do you have to do to a equation with two letters eg - 3t+2=2t+6

Answer 9

You would minus the smallest letter then do the sum as normal

Question 10

What is a prime number

Answer 10

A number hat is divisible by one and itself

Question 11

How do you find the HCF?

Answer 11

You multiply the numbers in the overlap of a Ben diagram

Question 12

What does a +plus a - equal ?

Answer 12

A negative

Question 13

What does a + plus a+ equal?

Answer 13

A positive

Question 14

What does a - plus a- equal ?

Answer 14

A positive

Question 15

What does this symbol mean ~

Answer 15

Approximately

Question 16

Define each letter of BIDMAS?

Answer 16

Brackets
Indicies 
Division
Multiplication
Addition
Subtract

Question 17

78% as a fraction in its simplest form ?

Answer 17

78. 39
    —- ——
79. =. 50

Question 18

How do you divide a fraction ?

Answer 18

Flip the last number and change the sign to a multiplication instead of division

Question 19

How do you multiply a fraction

Answer 19

Top x top

Bottom x bottom

Question 20

How do you add or subtract a fraction ?

Answer 20

Match the two denominators

Question 21

Define equation

Answer 21

An expression containing a equals sign ( something that can be solved)

Question 22

Define expression

Answer 22

Collection of mathematical symbols eg - (3a+b)

Question 23

Define formula

Answer 23

An equation involving mesurables ( D=SxT)

Question 24

Define identity

Answer 24

An equation is the same on both sides of the equals sign

Question 25

What does the dot on top of a number mean ?

Answer 25

Recurring

Question 26

Pythagoras Theorem =

Answer 26

Asquared + Bsquared =csquared

Question 27

What are the 3 sides of a triangle and where are they found on it ?

Answer 27

Hypotenuse = longest side opposite right angle
Opposite = side opposite the angle changes depending on where the angle is
Adjacent =line next to the angle changes based on location of angle

Question 28

SIN=

Answer 28

Sin= opposite
—————
Hypotanuse

SOH
S=O\H

Question 29

COS=

Answer 29

Cos = Adjacent
—————
Hypotanuse

CAH
C=A/H

Question 30

TAN=

Answer 30

Tan = opposite
—————
Adjacent

TOA

T=O/A

Question 31

Remember
Sin=SOH
cos =CAH
Tan=TOH

Answer 31

SOH
CAH
TOA