Maths: Pythagoras and Trigonometry 0.0 / 5 ? MathematicsTrigonometryPythagorasGCSENone Created by: BarjunCreated on: 06-05-17 08:13 When do you use sin? When you know the opposite and the hypotenuse line. 1 of 11 When do you use cos? When you know the adjacent and hypotenuse line. 2 of 11 When do you use tan? When you know the opposite an adjacent line. 3 of 11 What is the theta? The angle. 4 of 11 Can Pythagoras' theorem solve the length of the base of a triangle Yes, just re-arrange the order of the equation 5 of 11 What is the minus function of sin, cos and tan for? It can be used to find out the angle 6 of 11 What is the angle of elevation? The angle of elevation is the angle that we look up at when we are on the horizontal to the top of an object. 7 of 11 What is the angle of depression? The angle of depression is the angle going down from the horizontal. 8 of 11 What is the first rule of bearings? It must be in three digits, even if the number is 20, for example. 9 of 11 What is the second rule of bearings? You must always measure clockwise. 10 of 11 What is the third rule of bearings? You must always measure from the North. 11 of 11
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