Angles A and B are complementary. If mLA is 56°, what is mZB? mLA + mZB = 90° + mZB%3D 90° Substitute for mZA. -56° -56° Subtrac from both sides to isolate mZ mZB The mLB is : 90 : 56 :: 146 : 34 : 180 : B :: A : acute : right : obtuse : straight

Q: In the diagram below, AB = BC, and mZA = 63°. Find mZBC'D.

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Q: Convert to rectangular coordinates by hand. Use exact values. (a) (3, 150°) (b) (/2.-225°) 2.

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Q: Name a right angle.

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Q: (ANB)° =A°UB°

A: De Morgan's Laws: If A and B are any two sets then,  A∪Bc=Ac∩BcA∩Bc=Ac∪Bc

Q: A scuba diver is 356 feet below the surface of the water. The angle of depression the diver makes…

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Q: Triangle XYZ, where XZ = 30, 2X = 30°, ZZ = 90° and YZ = h. Find missing side and angle.

A: Use trigonometric identity and angle sum property

Q: The diagram below represents parallel lines cut by a transversal. Interpret what is wrong with the…

A: NOTE: Refresh your page if you can't see any equations. . it is given that

Q: a

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Q: Direction: Find the quadrant where the terminal side of each of the following angles lies. a.…

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Q: a 60° 2V3

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Q: Example Stem: Donna wants to calculate the height of a tree. She makes the following measurements.…

A: To calculate the height of the tree.

Q: If OA = [3, -1, 4] and OB = [6, -1, 8], find the magnitude of AB:

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Q: A bird is flying in the sky when it spots a worm on the ground. If the angle of depression from the…

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Q: Vincent drew a rectangle on a coordinate grid. How could he transform the rectangle to produce an…

A: According to questionVincent drew a rectangle on a coordinate grid, we have to calculate How could…

Q: Find the measure of each acute angle. (6x + 7)° (11x- 2) 21 (11z - 2) = and (6z + 7)* =

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Q: Convert to rectangular 2Z– 150° - O -V3- i O -1+iv3 O -V3+ i O -1-i3

A: Given polar form is 2 ∠ -150° So here r = 2 θ = -150°

Q: lal = 7, |b| = 4, the angle between a and b is 30°

A: Given:     To determine:

Q: In this diagram the final angle of reflection equals

A: answer is in next step, please give a like !!!

Q: (-4x) (−14x)

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Q: 2. Find mzAВС. A (7х-1)° (3х - 9)° B.

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Q: In parallelogram CDEF if CG=6 find GE.

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Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.