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Yr 9 – Angles RevisionBlue
Red
Green
Orange
GreyYellow
Question One
Name 3 acute angles in this picture.
Answer
Ans: ےBAG, CBD, EFD, DEF, BFG, BCE
A
G FE
D
B C
^ ^ ^ ^ ^ ^
Question TwoAnswer
Ans: Square based pyramid
What is the mathematical name of this famous 3 Dimensional Structure?
Question ThreeAnswer
Ans: 315º
What is the bearing for the compass direction NW?
0
0
?
Question FourAnswer
Ans: 42º (Vertically opposite angles are equal)
What is the
missing angle, x? State the angle property you used?
42º
x123º
Question FiveAnswer
Ans: 48º (Angles on a line add to 180º)
42º
y
123º
What is the missing
angle, y?Give the angle property you used to make the calculation.
Question SixAnswer
Ans: Complementary
Are 42º and 48º complementary or supplementary angles?
Question SevenAnswer
It’s a Race!
All groups! Organise a bunch of different angles according to their type.
Question EightAnswer
Ans: 24º
102º
XWhat is the missing angle, x ?
Question NineAnswer
Ans: x = y = z = 60º (equilateral triangle)
What are the missing angles and what type of triangle is this ?x
y
z
Question TenAnswer
Ans: 180º
Angles add to _______?
Question ElevenAnswer
Ans: 1.) Scalene 2.) Right-angled 3.) Isoceles
2
1
3
Correctly identify all 3 of the triangles shown
Questions TwelveAnswer
Ans: Triangular Prism
What is the name of this 3 Dimensional Shape?
Question ThirteenAnswer
Ans: 230º
What is the best estimate for the bearing from X to Y?
N
x
y045º, 230º, 280º or 175º
Questions FourteenAnswer
Ans: x = 65º (Parallelogram)
65º
Name this quadrilateral. What is the missing angle, x?x
Question FifteenAnswer
Ans: 258º (Sum of angles at a pt add to 360º)
x
12 ºWhat is the missing angle, x?
State the angle property you used to make the calculation.
Question SixteenAnswer
Ans: 6 Faces, 12 Edges, 8 Vertices
How many:
Faces_______Edges_______Vertices_____
Question SeventeenAnswer
Ans: Cylinder
Name this 3 Dimensional Shape
Question EighteenAnswer
Ans: 070º
What is the best estimate for the bearing from A to B?
N
A
B
135º, 045º, 070º, or 255º
Question NineteenAnswer
Ans: ےABC, obtuse, vertex at B
A
CB
What is the name and type of this angle?
Which point is the vertex?
^
Question TwentyAnswer
Ans: Isoceles Trapezium, 360º
Name this shape.
What is the sum of all the interior angles of this quadrilateral?