Answer Happy

5. Complete the following table using a scientific calculator to evaluate the trigratios. Round to 4 decimal places For the acute angle row. Use the measure of angle A and the numbers for each side from question 3 For the obtuse-angle row, use the numbers from Question Angle measure SinA COSA tana Acute Angle A Obtuse Angle A 6. a) which type of angle is A if point is in Quadrant 12 b) Which type of angle is Alf point is in Quadrant 2? 7. Can r= Vr?+y be negative? Why or why not? b) When angle A is acute, is x positive or negative? c) When angle A is obtuse, is x positive or negative? d) When angle A is acute, is y positive or negative? e) When angle A is obtuse, is y positive or negative? 8. Suppose angle A is ACUTE. Use your answers from question 7 Think about ... Is it positive or negative? Explain why. sin A - COSA 7 tanA= x Suppose angle A is OBTUSE. Use your answers from question 7 Think about ... Is it positive or negative? Explain why. sin A = r COS A = tanA=2