triangles i 100 50 25 10 5 triangles ii anglesangles graphsgraphs misc.misc. review for test 2 100...

Triangles ITriangles ITriangles ITriangles I

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Triangles IITriangles IITriangles IITriangles II AngleAngless

AngleAngless

GraphsGraphsGraphsGraphs Misc.Misc.Misc.Misc.

Review for Test 2Review for Test 2

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Chapter 6 and 7Chapter 6 and 7Review for Test 2Review for Test 2

Final Round

Triangle I

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cos(x)=3/4cos(x)=3/4

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5 Point Question5 Point Question

In the right triangle below, what In the right triangle below, what is cos(x)?is cos(x)?

xx

33

445

Based on the triangle below, find Based on the triangle below, find cot(x).cot(x).


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Cot(x)=3/Cot(x)=3/√5 √5 xx

33

445

12.5 in, 36.912.5 in, 36.900, and 53.1, and 53.100

25 Point Question25 Point QuestionOne side of a right triangle is 7.5 in. The One side of a right triangle is 7.5 in. The other side is 10 in. Find the length of the other side is 10 in. Find the length of the hypotenuse and the size of the two angles.hypotenuse and the size of the two angles.

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Sin(A) = √21/5 and Sin(A) = √21/5 and Tan(B)=2/√21Tan(B)=2/√21


In the right triangle (right angle at C,) In the right triangle (right angle at C,) Cos(A) = 2/5. Find an expression for Cos(A) = 2/5. Find an expression for Sin(A) and Tan(B).Sin(A) and Tan(B).

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How tall is a tree if the angle How tall is a tree if the angle of elevation is 70of elevation is 7000 when you when you are standing 22 feet from its are standing 22 feet from its base.base.


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60.44 ft.60.44 ft.

Triangle 2

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C = 80C = 8000

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A = 25A = 2500, c = 12, B = 75, c = 12, B = 7500. . Find C.Find C.



A = 25A = 2500, c = 12, B = 75, c = 12, B = 7500. . Find a and b.Find a and b.

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a = 5.15, b = 11.77a = 5.15, b = 11.77


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A = 68A = 6800, b = 11 ft, c = 15 ft. Find B, C , b = 11 ft, c = 15 ft. Find B, C and a.and a.

a = 14.9 ft, B = 43.2a = 14.9 ft, B = 43.200, C = 68.8, C = 68.800

a = 6, b = 8, c = 12. Find A, B and a = 6, b = 8, c = 12. Find A, B and C.C.


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A = 26.4A = 26.400, B = 36.3, B = 36.300, C = , C = 117.2117.200

A = 47A = 4700, b = 12, a = 9. Find B, C, and c., b = 12, a = 9. Find B, C, and c.


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Triangle 1: B = 77.2Triangle 1: B = 77.200, C = 55.8, C = 55.800, c = , c = 10.210.2

Triangle 2: B = 102.8Triangle 2: B = 102.800, C = 30.2, C = 30.200, c = , c = 6.26.2

Angles

Convert 120 degrees to Convert 120 degrees to radiansradians


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2 Pi/32 Pi/3

Convert 7 radians to degreesConvert 7 radians to degrees


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1260/Pi1260/Pi


How long is the crust on a How long is the crust on a piece of pizza if the slice is piece of pizza if the slice is cut at a 30cut at a 3000 angle and the angle and the

radius is 6 in.radius is 6 in.

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3.1415926… (PI!)3.1415926… (PI!)

15 radians or 15 radians or 859.4859.400

A cable is wrapped around a drum A cable is wrapped around a drum with a 6 foot diameter. If we want to with a 6 foot diameter. If we want to unroll 45 feet of cable, through what unroll 45 feet of cable, through what angle do we need to rotate the drum?angle do we need to rotate the drum?


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Find another angle between 0 and 360 Find another angle between 0 and 360 degrees that has the same cosine as degrees that has the same cosine as

cos(15cos(15oo))

345345oo


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Graphs

2 Pi2 Pi


What is the period of y = sin (x)?What is the period of y = sin (x)?

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What is the amplitude of y = 7 What is the amplitude of y = 7 cos(2x)cos(2x)


77

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Sketch the graph of y = 3sin(4x - Pi)Sketch the graph of y = 3sin(4x - Pi)


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Sketch the graph of y = -2cos(4x) + 3Sketch the graph of y = -2cos(4x) + 3

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Find the equation for a sine function:Find the equation for a sine function:

Y=3sin(Pi x-Pi/2)+4Y=3sin(Pi x-Pi/2)+4

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Miscelaneous

What family member will we What family member will we be celebrating on Sunday be celebrating on Sunday

May 14th?May 14th?


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Our MotherOur MotherBecause it is Mother’s DayBecause it is Mother’s Day

What is the capitol of What is the capitol of Washington State?Washington State?


OlympiaOlympia

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Who is the King of Pop?Who is the King of Pop?

Michael JacksonMichael Jackson

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Who is the King of Rock and Who is the King of Rock and Roll?Roll?

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Elvis!Elvis!

According to the Current, how much According to the Current, how much did I get paid last year?did I get paid last year?


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$50,245$50,245

In any right triangle, the In any right triangle, the sum of the squares of the sum of the squares of the two sides is equal to the two sides is equal to the

square of the hypotenusesquare of the hypotenuse

State (in words) the Pythagorean State (in words) the Pythagorean TheoremTheorem

Final QuestionFinal Question

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triangles i 100 50 25 10 5 triangles ii anglesangles graphsgraphs misc.misc. review for test 2 100...

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