Which choice shows the image of triangle ABC after a reflection over the y-axis followed by a rotation of 180° around the origin
?
2 answers:
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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)
180-(30+90)
180-(120)
60
Evaluate using sine rule:
c=
=
=20
The length of line segment AB is 20 feet (answer choice C)