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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: Given cos T = 3/5, calculate the value of sin T, tan T.
Answer:

Q 2: 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 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
100 metres
200 metres

Q 4: In triangle ABC, if b = 6, c = 4, cos A = 1/12, find a
4
4.31/2
31/2

Q 5: Find the degree measure of the angle subtended at the centre of a circle of diamter 200 cm by an arc of length 22cm.
45o
12o36l
33o

Q 6: If in two circlesarcs of the same length subtend angles 60o and 75o at the centre, find the ratio of their radii.
5:4
1:2
2:3

Q 7: A vertical flagstaff stands on a horizontal plane from a point distant 150 metres from its foot, the angle of elevation of its top is found to be 30o, find the height of the flagstaff.
100 metres
100.4 metres
113.4 metres

Q 8: In a triangle ABC, a = 2, b = 3 and sin A = 2/3, find angle B.
90 degrees
75 degrees
80 degrees

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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