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Year 10 TNT Trig Questions
Year 10 TNT Trig Questions
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1
arcsin
is the same as \sin^{-1}
False
True
2
What is a
plane
triangle?
It can fly like a plane
It has straight sides
Never hardly used in maths so not worth knowing
spelling mistake should be plain triangles
3
What
topic in maths
can be used to calculate
tides
?
Algebra
Probability
None of these
Trignometry
4
Which
direction
is the pilot flying when they are landing on this runway?
South
East
West
North
5
Why is one side of a right angle triangle labelled the
Adjacent
side?
Because it is always the shortest side
Because it is always next to the hypotenuse
Because it is next to an Angle called A
Because it is next to the angle we know or want to find
6
What
type of numbers
are useful to
know when using Pythagoras
?
whole numbers
triangle numbers
even and odd numbers
square numbers
7
Trigonometry is
not only used to find angles and lengths for Triangles
. What
job below
would you use it?
Hair dresser
Electrician
Waiter
Cleaner
8
Trig is all about what..?
The study of three objects
Drawing triangles
None of these
Measuring angles and lengths on triangles
9
The ratio \frac{O}{H} is for what trig function?
Sine
cosine
Why ask me? I really don't know.
tangent
10
Surveyors & navigators use degrees minutes & seconds for measuring angles.
What is 0.5
\degreein minutes?
10 '
40'
30'
60'
11
To find ywhat
trig ratio
do we use?
Sine
Cosine
Can't be solved
Tan
12
The Japanese below is for what shape
circle
triangle
square
rhombus
13
The
Sun's height
in the sky is given by what?
Azimuth
Elevation or altitude angle
Vertical angle
A range in Kilometres
14
A
bearing
must be a 3 digit number
True
False
15
How many
Decimal places
should you leave your side
length
answer?
zero decimal places
4 Decimal places
3 decimal places
2 decimal places
16
To calculate these
long distances between countries
on the sign post below what
kind of triangles
do we use?
right angle
Plane
Spherical
All of these can be used
17
Why do
Sine
and
Cosine
have similar names?
Co stands for compute
Co stands for correct
who cares? I don't!
Co stands for complementary
18
The ratio \frac{O}{A} is for what trig function?
cosec
Cosine
Sine
Tangent
19
The ratio\frac{A}{H}is for what trig function?
tangent
cosine
sine
cosec
20
Why do some classes in Y10 learn
SOH CAH TOA?
It helps them remember the Trig ratios
It reminds them of the game Soccer
To fill in time in class
None of these
21
What kind
of triangle is in
red
below?
left triangle
Plane triangle
Spherical triangle
Right triangle
22
Are these
ratios the same
\frac{BC}{AC}= \frac{DE}{AE}= \frac{FG}{AG}
Yes it is the Sine ratio
Yes, it is the Tan ratio
Yes it is the Cosine ratio
No they are not
23
To find the missing
angle
xwhat trig ratio do we use?
Cos
^{ }Cos^{-1}
^{Sin^{-1}}
Sin
24
In
trigonometry
, what word below
Don't we label
a triangle with?
hypotenuse
adjacent
base
opposite
25
The Egyptians used a piece of rope to measure
right angles
by using what theorem?
Pythagoras
Trig
Algebra
Statistics
26
Why do we use
inverse
trig functions ?
to find an angle
to find the length of a side
to make things complicated
to a find the total of all angles in a triangle
27
How can you calculate the height of the Ohaaki Cooling Tower if you can measure the length of the shadow on the ground?
On-line Find the elevation of the sun. Measure the shadow by your steps.
Ask someone you don't like to climb to the top with a tape measure.
Can't we just ask the Company who designed it? I am lazy!
The length of the shadow is the actual length of the tower.
28
In class we
cut pieces of colour paper
up like below to prove what
famous equation
in maths?
Triangles always had a right angle
Angles in a triange added to 180
pythagoras
triangles always have 3 sides
29
In class we used this
website
for doing what?
Find the distance the sun is away from the earth
Find the temperature of the sun
Find the elevation of the sun
Find the direction the sun is heading
30
To find xwhat trig function do we use?
Sine
Cosine
Any of these
Tangent
31
This symbol is often used for missing
angles
. What is it called?
Zero
Delta
Theta
Alpha
32
Taupo Airport has
two runways
. One is numbered 17 and the other is 35. Why is this?
Is is the bearing of the runway without the zero on the end
It is a random number decided by the Civil Aviation Authority
It is the width in metres
Why ask me ? I haven't been on a plane in my life
33
In Trig we some times
multiply or sometimes divide
. What does this
depend on?
if the unkown is on the top or bottom of the trig ratio
Don't ask me, I hate Trig
If it states in the question
If the unknown is an angle
34
Angles
in a
Spherical Triangle
Add to....?
360
a little less than 180
180
a little more than 180
35
In blood splatter anaylsis.
A circular shape blood
stain tells us that the
angle of impact
is near _____?
Can't tell
90\degree
40\degree
20\degree
36
We usually label the
hypotenuse
first on a triangle
It is the 2nd shortest side of a triangle
because it is the longest and easy to identify
because it is the longest word
Because we just do, end of story!
37
You can use the
trig ratios (sin, cos, tan )
to find the missing side
a
in the Triangle beow?
True
False
38
Sin 30\degreeis the same as cos 60\degree
True
False
39
These are
similar
triangles why?
They have same length sides
All of these
They have a right angle
They have the same angles
40
If I was using the
shift key
on my calculator what would I be doing in Trig?
turning the calculator on
finding a missing angle
finding a length of a side
deleting my answer
41
How many
decimal places
should you leave your
angle
answer?
0 Decimal places
1 decimal place
3 Decimal places
2 Decimal places
42
Why is pythagoras' theorem limited?
It can only be used with lengths not angles
It can't be used with right angle triangles
It can only be used with angles
All of these
43
When is the sun the highest in the sky
In July
On TNT SpIrit Week
Now
Around Christmas
44
Isosceles triangles
have 2 angles the same and 3 lengths the same
True
False
45
A
protractor
is used for what?
measuring lengths
measuring angles
drawing circles
for throwing around in class
46
What does this equal?
tan
cos -12
sin - 1
C2
47
What is the bearing of Spa Road?
075\degree
030\degree
090\degree
130\degree
48
After you have turned on your calculator what do you check first?
The mode must be in 'R'
The Mode must be in TRIG
The mode must be in INVERSE
The mode must be in 'D'
49
At a
crime scene
we can use
Trig
to measure what?
The angle of impact when the blood hit the floor or wall
the shape of the blood splatter
The blood type
the speed of blood through the air
50
By looking at the graph below
Sin 30
o
is negative
True
False
51
Finding the
longest side by Pythagoras
has less steps than finding a shorter side
True
False
52
A
common mistake
in using
Pythagoras
is what?
Forgetting the units (metres or cm or km)
Not making the longest side equal to C
All of these
forgetting to take the square root at thd end
53
An example of a
Pythagorean triple
is?
3, 4, 5
All of these
1, 2, 5
8, 10, 12
54
What maths skill
is this surveyor using to measure how far the Javelin is being thrown?
Algebra
Trigonometry
Statistics
Fractions
55
In class we used
Pythagoras
to find the
distance to the horizon
. Roughly, how far was this?
5 km
15 km
20 Km
2 km
56
By looking at the
Graph below SinΘ 270
o
is
negative
False
True
57
What
type of triangle
is this?
isosceles
equilateral
none of these
scalene
58
Why is one side of a right triangle labelled
Opposite?
It is opposite the longest side
it is always opposite the right angle
I give up! I am too tired today
it is the side furthest away from the angle we know or want to find
59
To find kwhat trig ratio do we use?
Cosine
Tangent
Co tangent
Sine
60
What
trig ratio
do we use to
find the angle of impact
in blood analysis?
Cosine
We us Pythagoras
Sine
Tangent
