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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: 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.
150 metres
100 metres
86.6 metres

Q 2: In triangle ABC, a = 8.4 cm, b = 7.6 cm and c = 9.2 cm. Calculate the area of triangle ABC.
50 sq. cm
30 sq cm
45 sq cm

Q 3: 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 4: 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.
800 metres
809 metres
819.6 metres

Q 5: 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 6: Solve the triangle ABC given that A = 67o, b = 3 cms, c = 2 cms.
a = 5 cm, B = 70o19l, C = 39o 41l
a = 2.88 cm, B = 73o19l, C = 39o 41l
a = 2 cm, B = 73oC = 39o 41l

Q 7: In triangle ABC b = 4, c = 6, B = 30o, find sin C.
1/2
3/4
4/3

Q 8: cos 75o
Answer:

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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