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Determine the unknown angle measures.
Determine the unknown angle measures.
2 answers:
Answer:
1:
degrees(3rd angle of triangle)
Angle 1 is degrees.
2:
Angle 2 is 45 degrees as vertically opposite is also 45 degrees.
3:
degrees(third angle of lower triangle)
Its opposite will also be 70 degrees.
So, 3rd can be found as : degrees
You can also say that 3 is vertically opposite of 110 degrees.
4:
degrees
5:
This is also 115 degrees as its vertically opposite angle to 4.
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Answer:
Step-by-step explanation:
Rising 30 feet for every 400 feet of track is not a very large angle of elevation. We set this up as a right triangle to use right triangle trig to solve for the missing angle. The height is 30 and the hypotenuse is 400. The height is the side opposite the angle in question, and the hypotenuse is the hypotenuse! This is the sin ratio. Setting up the ratio using our info:
When you are looking for a missing angle measure, as we are here, use the 2nd-->sin buttons to find the inverse of sin, which looks like this:
Enter in the fraction 30/400 after the parenthesis and then hit enter to get the angle measure of 4.3 degrees.