Section 3 Assignment: Part 3
The Sine Ratio
Instructions: Please show all your work. Draw a diagram and show calculations,
whenever possible. You may use your AWM 10 Data Pages. (14 marks)
1. a. State the sine ratio for each of the three angles: 30°, 60°, 75°. Round each to
two decimal places. (1 mark)
b. What do you notice about the value of the sine ratios in Question (a) as the
angles increased in size? (1 mark)
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APPRENTICESHIP AND WORKPLACE MATHEMATICS 10—MODULE 3
2. In the Lesson C Focus, you read about how difficult it is for even expert golfers
to drive a golf ball along an intended path. Suppose you can consistently drive
a golf ball through the air for 250 yards. If the ball ends up 5° off course, how
many yards will it end up off the desired path? Round your answer to the
nearest yard. (2 marks)
250 yards
5º
APPRENTICESHIP AND WORKPLACE MATHEMATICS 10—MODULE 3
x
3. Determine sin 35° correct to two decimal places by drawing a right triangle
and measuring its sides. Include your drawing and calculations. Confirm your
answer by using a calculator. (4 marks)
APPRENTICESHIP AND WORKPLACE MATHEMATICS 10—MODULE 3
4. By drawing a triangle and using your protractor, determine ∠A to the nearest
degree, if sin A = 0.4. Show all your work. (4 marks)
APPRENTICESHIP AND WORKPLACE MATHEMATICS 10—MODULE 3
5. Use your calculator to determine ∠A to the nearest tenth of a degree, if
sin A = 0.6543. Write your solution using appropriate notation. (2 marks)
APPRENTICESHIP AND WORKPLACE MATHEMATICS 10—MODULE 3
APPRENTICESHIP AND WORKPLACE MATHEMATICS 10—MODULE 3