Activity for cos(a+b) formula
Question 1
Which segment is ?
Question 2
Which segment is ?
Question 3
Which segment is ?
Question 04
Which segment is ?
Question 5
Which segment is ?
Question 6
Which segment is ?
Question 7
What is an expression in terms of and for the length of AB? Hint: Use right triangle ABG.
Question 8
Explain why angle CAD must be congruent to angle GEF?
Question 9
Write an expression in terms of and for the length of FG? Hint: Use right triangle EFG
Select all that apply
- A
Question 10
In question 5, you should have found that segment AI can be called But AI is also the difference of AB-IB=AB-FG. What is another (more complicated) expression for the length of AI?