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

Q 2: Show that cot x.cot 2x - cot 2x cot 3x - cot 3x cot x = 1
Answer:

Q 3: cos 75o
Answer:

Q 4: If the shadow of a tower is 30 metres, when the sun's altitude is 30o, what is the length of the shadow when the sun's altitude is 60o?
Answer:

Q 5: Find the radian measure corresponding to -37o30l.
-5/8
-5/24
-5/4

Q 6: The angles of a triangle ABC are in AP and b:c = 31/2:21/2. Find angle A.
75 degrees
60 degrees
45 degrees

Q 7: The angular elevation of a tower from a point is 30 degrees at a point in a horizontal line to the foot of the tower and 100 metres near it is 60 degrees, find the distance of the first point from the tower.
100 metres
86.6 metres
150 metres

Q 8: 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
20/3
5/3

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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