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Find the values of the following as fraction. Remember, do not use your calculator:
1.sin 30
2.cos 30
3.tan 30
4.sin 60
5.cos 60
6.tan 60
7.sin 45
8.cos 45
9.tan 45
10.sin 90
11.cos 90
12.tan 90
13.sin 0
14 cos 0
15.tan 0
*Answer :
1. Two angles of a triangle are 30 and 135. Find the ratio of the longest side to the side opposite 30.
2. Two sides of a triangle are 4 and 5 and the included angle is 60.Find the third side.
3. If a chord 8 inches long has an arc of 120, find the radius,in inches,of the circle.
4.The coordinates of vertices P and Q of an equilateral triangle PQR are
(-5,2) and (5,2) respectively. Find the all possible coordinates of R