GEOMETRY ASSIGNMENT SHEET
UNIT 9- RIGHT TRIANGLES AND TRIGONOMETRY
This is the proposed schedule for this unit. Assignments may be changed as needed throughout the unit. Please look for updates in class
or on the Internet to verify that day’s assignment.
Day
Date
Concept(s)
Thurs
2/12
9.1 Similar Right
Triangles
CA Standard: 5
Fri
2/13
9.2 The
Pythagorean
Theorem
CA Standard: 8,
10, 14, 15
9.3 Converse of
the Pythagorean
Theorem
CA Standard: 15
Mon
Tues
2/16
2/17
Weds
2/18
Thurs
2/19
Fri
2/20
9.5 Trigonometric
Ratios (cont.)
CA Standard: 18,
19
Mon
2/23
Tues
2/24
9.6 Solving Right
Triangles
CA Standard: 19
Review
Weds
2/25
Thurs
2/26
9.4 Special Right
Triangles
CA Standard: 14,
20
9.4 Special Right
Triangles (cont.)
CA Standard: 14,
20
9.5 Trigonometric
Ratios
CA Standard: 18,
19
Review
Classwork
WU: Algebra Review Page 522 #13-36 (X3) or Discuss
Pythagorean Puzzle Solutions and its geometric Significance
Th (9.1: Altitude to the hypotenuse of a right triangle forms two
similar triangles)
Th (9.2, 9.3: Geometric Mean Theorems)
WU: Page 531 #1-10
Voc (Pythagorean Triple)
Th (9.4: Pythagorean Theorem)
Th (9.5: Converse to Pythagorean’s Theorem)
Th (9.6:If the square of the length of the longest side is less than
the sum of the squares of the other two sides, it is an acute
triangle)
Th (9.7:If the square of the length of the longest side is greater
than the sum of the squares of the other two sides, it is an obtuse
triangle)
No School – President’s Day Holiday
WU: Const (Page 550)
Concept (45-45-90 right triangles; 30-60-90 right triangles)
Th (9.8:45-45-90 Triangle Theorem)
Th (9.9: 30-60-90 Triangle Theorem)
WU: Page 554 #1-11 or Spider and Fly Activity (see handout)
Activity: Worksheet Lesson 9.4 A and B
WU: Math History: Pythagoras (handout or page 557)
*Use Trig Tables on page 845; Calculators Needed Tomorrow
Concept (Sine, Cosine and Tangent Ratios)
“SOH-CAH-TOA”
Voc (Trigonometric Ratio, Sine, Cosine, Tangent)
WU: Calculator Activity (see transparency of TrigTable)
Complete Calculator Activity, then collect. Pass back the day
of the test – this is will be the student’s trig table for the test!
*Calculators Needed
Quiz
WU: Page 567 – Finding Angles in a Right Triangle.
*Calculators Needed
Concept (inverse sine, inverse cosine, inverse tangent)
*Calculators May Be Needed
Optional Activity: Happily Ever After Worksheet
WU: Chapter Summary and Assessment
Application Activity: Transparency – Trig Distance Problems
*Calculators Needed
Chapter 9 Test
*Calculators Needed for Part II of Test
Assignment
Page 531 #11-30, 31,
32, 34, 41, 42
Page 539 #8-24
(even)
#25-30 (all)
Page 545 #3-6 (all);
#8-24 (even); #34, 35
Page 554 #12-20, 2426, 35
Page 557 #42-46
Page 554 #1-11,
21-23, 27-29, 31-34,
36, 38,
#47-49 (all)
Page 562 #1-36,
Page 563 #37-42,
46-51, 53, 54
#57-60
Page 570 #8-37
Page 572 #54-64 (e)
Review Worksheet
Page 582 #1-21
Page 588 #1-30 (e)