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GEO: 8-2 QC (sin, cos, tan)
Con il contributo di: Maynard
(Autore originale: Dilaura)
8.2.1
1. Use the triangle below to write the     ratio for Sin A.
A
Sin A = 
15
13
B
C
8
8.2.1
2. Use the triangle below to write the     ratio for sin B.
A
Sin B = 
15
13
B
C
8
8.2.1
3. Use the triangle below to write the     ratio for cos A.
A
Cos A = 
15
13
B
C
8
8.2.1
4. Use the triangle below to write the     ratio for cos B.
A
Cos B = 
15
13
B
C
8
8.2.1
5. Use the triangle below to write the     ratio for tan A.
A
Tan A = 
15
13
B
C
8
8.2.1
6. Use the triangle below to write the     ratio for tan B.
A
Tan B = 
15
13
B
C
8
8.2.1
7. Which side (leg) is opposite the 30∘ angle?
30

c

a

60

b
side a

side b

side c

side d

8.2.1
8. Which side (leg) is opposite the 60o angle?
30

c

a

60

b
side a

side b

side c

side d

8.2.1
9. Which side (leg) is adjacent to the 30∘ angle?
30

c

a

60

b
side a

side b

side c

side d

8.2.1
10. Which side is opposite the 90o angle?
30

c

a

60

b
leg a

leg b

hypotenuse c

hippopotamus d

8.2.1
11. Given the triangle below find the missing side length x to the nearest tenth.
x = 
50o
18
x
8.2.1
12. Given the triangle below find the missing       side length x to the nearest tenth.
x = 
50o
7
x
8.2.1
13. Given the triangle below find the missing       side length x to the nearest tenth.
x = 
12
25o
x
8.2.1
14. Given the triangle below find the missing side lenght x to the nearest tenth.
x = 
65o
3
x
8.2.1
15. Given the triangle below find the missing       side length x to the nearest tenth.   
x = 
15
x
78o
8.2.1
16. Given the triangle below find the missing       side length x to the nearest tenth.
x = 
18o
12
x
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