23.
29.
[Probability]
[Volume]
*
*
What is the volume of air inside the barn
shown?
The circle graph shows the main means of
transport used by each scientist to travel to a
Global Warming Conference. What are the
chances that a scientist, selected at random,
traveled to the conference by train?
3m
7m
30.
[Surface Area] *
Find the area of the net below.
24.
[Geometry]
*
Euler's formula, E = V + F - 2, defines the
relationship between Edges, Vertices and Faces
in any polyhedron. Verify Euler's formula for a
pentagonal prism.
-2
31.
[Pythagorean
Theorem / Trigonometry]
For which angle isfthe
~
25. [Angles]
*
Find the value of xc.
32.
[Problem
Solving
adjacent leg?
h
1]
Here are two views of one die. Which letter is
on the face opposite the D?
26.
[Measurement
@~
/ Time]
33.
Change 800 ounces into pounds.
[Problem Solving 2]
50lb
27.
*
On a piano the frequency of the note
"middle C" (shown as C4 below) is 440 Hz.
If we imagine this key as position 0 on a
number line and other keys as 1,2, 3, to the
right and -1, -2, -3 to the left as shown, then
the frequency of each key can be found using:
[Perimeter] *
Find the perimeter of the shape below.
Fn = 440 x
2(G)
Use this to find the value of the ratio:
frequency of C4
frequency of C5
1600 m
28.
[Area]
*
A rectangle has an area of 15 fe. If you
double the width of the rectangle, what is the
area of the wider rectangle?
r--
r--
1 1 -8 -7 -5 -3 -1
C31D3 E3 F3 G3 A.4 B4
~
~
t
~~,~
~5
7 9 11 12 14 16
F4 b4 !A5 B5 C5 D5 £5
Middle C (440 Hz)
White 2.4@
page 26
-
Copyright. Not to be reproduced
without permission.
1
2
J. B. Wright - Echuca 2004