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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: Find the angle in radian through which a pendulum swings if its length is 75 cm and the tip describes an arc of length 15 cm
2/5
1/3
1/5

Q 2: In triangle ABC, a= 15 cm, B = 68 degrees, C = 43 degrees, find b, c and B.
A = 60 degrees, b = 4 cm, c = 9 cm
A = 60 degrees, b = 3 cm, c = 7 cm
A = 69 degrees, b = 4.89 cm, c = 10.96 cm

Q 3: 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?
240 metres
200 metres
100 metres

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

Q 5: In triangle ABC , if 2 cos A/a + cos B/b + 2 cos C/c = a/bc + b/ca. find angle A
90 degrees
30 degrees
45 degrees

Q 6: 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?
87.84 metres
100 metres
36.85 metres

Q 7: From the light house the angles of depression of two ships on opposite sides of the light house are observed to be 30o and 45o. If the height of the light house is 300 metres, find the distance between the ships if the line joining them passes through foot of the light house.
809 metres
800 metres
819.6 metres

Q 8: The angle of elevation of the top of a tower from a point 60m from its foot is 30o. Find the height of the tower.
100 m
20 m
2031/2 m

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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