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IBSL1 Non-Right Angled Trigonometry (Chapter 8)
Game Code: 529643
English
22
Public
The unit circle, area of a triangle, The cosine rule, the sine rule
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Ms. Czopek
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Given A= 63 degrees, B = 49 degrees, and b = 18 cm, find a.
21.3 cm
20
Given A= 82 degrees, C = 25 degrees, and c = 34 cm, find b.
76.9 cm
20
Given B = 21 degrees, C = 48 degrees, and a = 6.4 cm, find c.
5.09 cm
20
What is the Law of Cosines? State all 3 versions.
a^2 = b^2 +c^2 -2bc cosA, b^2 = a^2 + c^2 -2ac cosB, c^2 = a^2 +b^2 - 2ab cos C
15
What is the Law of Sines?
sin A / a = sin B / b = sin C / c
10
Find Cos B, if a = 4, b = 6, and c = 8
44/64 = 11/16 = 0.6875
15
Find Cos A, if a = 3, b = 6, and c = 7
76/84 = 19/21 = 0.9047619
15
Find Cos C, if a = 8, b = 6, and c = 12
-44/96 = -11/24 = -0.45833_
15
Find the acute angle which has the same sine as: 120 degrees
60 degrees
10
Find the acute angle which has the same sine as: 165 degrees
15 degrees
10
Find the obtuse angle whose cosine is the negative of: 19 degrees
161 degrees
10
Find the obtuse angle whose cosine is the negative of: 84 degrees
96 degrees
10
Find the area of a triangle with sides a = 6 cm, b = 9 cm, and angle C = 83 degrees
26.8 square cm
20
Find the area of a triangle with sides a = 7 km, c = 8 km, and angle B = 30 degrees
14 square km
20
Find the area of a triangle with sides b = 7.6 m, c = 9.3 m, and angle A = 111 degrees
33 square m
20
What is Ms. Czopek's kitten's name?
Simba
25
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