9. B
10. D
11. C
Step-by-step explanation:
9.
180=30+90+ Angle of F
Angle of F = 60°
10.
[tex]sin \: 30 = \frac{d}{10} \\ d = 5[/tex]
11.
[tex]cos \: 30 = \frac{f}{10} \\ f = 5 \sqrt{3} [/tex]
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Verified answer
9. B
10. D
11. C
Step-by-step explanation:
9.
180=30+90+ Angle of F
Angle of F = 60°
10.
[tex]sin \: 30 = \frac{d}{10} \\ d = 5[/tex]
11.
[tex]cos \: 30 = \frac{f}{10} \\ f = 5 \sqrt{3} [/tex]
Pa BRAINLIEST po