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BCALLE can u help me with both 2

BCALLE can u help me with both 2-example-1

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# 19
Letter D
tan 30 = opp/adj Should be set up as tan 30 = 72/CD

# 20
EG = DH = 11
EFG forms a right triangle
EF is the hypotenuse, EG is the opposite, so we need to use Sin ratio.
Sin F = 11/15
Sin^-1(11/15) = Angle F
Angle F = 47 degrees
Letter C

User Abir Ahsan
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