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

Q 2: 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
113.4 metres
100.4 metres

Q 3: Find the degree measure of 3/4.
42057l18ll
35o
45o

Q 4: 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 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 horizontal distance between two towers is 60 metres and the angular depression of the top of the first as seen from the top of the second, which is 150 metres is 30o. Find the height of the first.
120 metres
100 metres
115.36 metres

Q 7: Given cos T = 3/5, calculate the value of sin T, tan T.
Answer:

Q 8: The sines of the angles of a triangle are in the ratio of 4:5:6, find the ratio of the cosines of the angles.
4:5:2
12:9:2
2:3:4

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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