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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Geometry
8.17 Trignometry Review

Function 0o 30456090
sin 0/2 1/22/23/24/2
cos 4/2 3/22/21/20
tan 0 3/313undefined
sec 1 23/322undefined
csc undefined 2223/31
cot undefined 313/30

sin cos tan
0 0 1 0
90 1 0 infinity
180 0 -1 0
270 -1 0 infinity




Functions of angles in all quadrants in terms of those in quadrant 1
-A 900 A
P/2 A
1800 A
P A
2700 A
3P/2 A
3600 A
2P A
sin -sinA cos A sin A -cosA sin A
cos cos A sin A -cos A sin A cos A
tan -tan A cot A tan A cot A tan A
csc -csc A sec A csc A -sec A csc A
sec sec A csc A -sec A csc A sec A
cot -cot A tan A cot A tan A cot A

Q 1: If tan C = 11, find sin C. cos C.
Answer:

Q 2: The angles of a triangle ABC are in AP and b:c = 31/2:21/2. Find angle A.
45 degrees
75 degrees
60 degrees

Q 3: In triangle ABC, a = 50, c = 60, b = 100 degrees, find b.
80
84.5
85

Q 4: Find the length of an arc of a circle of radius 10 cm which subtends an angle of 45o at the centre.
3/4
7/4
5/4

Q 5: In a circle of diamter 40 cm, the length of a chord is 20 cm. Find the length of the minor arc of the chord.
/3
5/3
20/3

Q 6: What is the angle of elevation of the sun when the length of the shadow of a pole is 31/2 times the height of the pole?
60o
30o
90o

Q 7: The angle of elevation of the top of a tower which is yet incomplete at a point 120 metres from its base is 45o. How much higher should it be raised so that the elevation at the same point may become 60o?
100 metres
87.84 metres
36.85 metres

Q 8: Solve the triangle ABC given that A = 67o, b = 3 cms, c = 2 cms.
a = 5 cm, B = 70o19l, C = 39o 41l
a = 2 cm, B = 73oC = 39o 41l
a = 2.88 cm, B = 73o19l, C = 39o 41l

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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