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OCR Maths
Trigonometry
Exact Trigonometry Values
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Cards (3)
Special Triangles
An
equilateral
triangle with side lengths of
2
cm can be used to calculate accurate values for the trigonometric ratios of 30° and 60°.
The equilateral triangle can be split into
two
right-angled triangles.
Special Triangles
A square with side lengths of
1
cm can be used to calculate accurate values for the trigonometric ratios of 45°.
Split the square into
two
right-angled triangles.
Exact Trigonometry Values:
A)
0
B)
1
C)
0
D)
1
E)
0
F)
1
G)
1/2
H)
1/2
I)
3
J)
3
K)
2
L)
2
M)
1
N)
3
13