Answer:
1. C
2. B
3. B
Step-by-step explanation:
Vertical angles are the angles opposite each other when two lines cross, thus angles with measures (x+77)° and 126° are vertical angles.
Vertical angles are congruent.
Hence,
How do I do angles of triangles
1 answer:
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The trigonometric function gives the ratio of different sides of a right-angle triangle. The value of b is 50.76 units.
<h3>What are Trigonometric functions?</h3>
The trigonometric function gives the ratio of different sides of a right-angle triangle.
where perpendicular is the side of the triangle which is opposite to the angle, and the hypotenuse is the longest side of the triangle which is opposite the 90° angle.
The value of c can be found by using the cosine function of trigonometry, therefore, the value of b is,
Cos(19°) = 48/b
b = 48/Cos(19°)
b = 50.76579 ≈ 50.76 units
Hence, the value of b is 50.76 units.
Learn more about Trigonometric functions:
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