Which ratio would we use to find the missing length How do you know Which ratio would we use to find the missing length How do you know opp adj hyp Angle known Adjacent known Opposite required In your book ID: 769729
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Which ratio would we use to find the missing length? How do you know?
Which ratio would we use to find the missing length? How do you know? opp adj hyp Angle known Adjacent known Opposite required
In your book… Title: Using Trigonometry to calculate a missing length of a right-angled triangle.
Worked Example Your Turn hyp opp adj
Calculate the missing lengths to three significant figures.
Mark your work 12.8 5.35 2.12 2.44 3.01 18.9 14.0 9.64
Numbered Head Together Teams of fourEach member numbered 1 to 4 Problem shown for 30 seconds for group to discuss One member of group selected by teacher The chosen one attempts the problem on mini whiteboard in silence Correct solution = 1 point for team
Problem 1 Calculate the area of this parallelogram to 1 decimal place.
Solution
Problem 2 ABCD is a rectangle. Calculate CE to the nearest integer.
Solution
Problem 3 ABCD is a trapezium. Calculate BC to 1 decimal place
Solution
Problem 4 Work out AC correct to 3 significant figures
Solution
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Challenge