Which is the measure of line segment AB?
A)10 feet
B)15 feet
C)20 feet
D)100 feet
2 answers:
Answer:
AB= 20 feet
Step-by-step explanation:
Given triangle ABC is a right angle triangle
Use trigonometric ratio to find the length of the Side AB
AB is the hypotenuse
Sin = opposite side divide by hypotenuse


Cross multiply it


AB= 20 feet
Find the last angle:
180-(30+90)
180-(120)
60
Evaluate using sine rule:

=

c=

=

=20
The length of line segment AB is 20 feet (answer choice C)
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