Ambiguous Case in Trigonometry

by Myra Deister

| 10 QuestionsNote from the author:

This formative was created to help students understand why there is an ambiguous case when given the SSA information about a triangle as asked to solve the remaining parts.

1

1 pt

What is the term for an angle that is less than 90o?

2

1 pt

Using the diagram from above, the measure of Angle A is

Calculate b sin A when b = 9

3

1 pt

In the diagram above, adjust a so that a < 4.5. How many complete triangles are formed?

4

1 pt

In the diagram above, adjust a so that it is the same measure as your calculation for b sin A. How many triangles can be formed?

5

1 pt

Adjust a so that it is larger than your measurement for b sin A but smaller than b. How many triangles are formed?

6

1 pt

Adjust a so that it is larger than b. How many triangles are formed?

7

1 pt

What is the term used for an angle whose measure is larger than 90o?

8

1 pt

Adjust angle A so it is larger than 90 o. Adjust a so that it is smallerthan b. How many complete triangles can you form?

9

1 pt

Continue with angle A larger than 90o. Adjust a so that it is larger than b. How many complete triangles can you form?

10

1 pt

Complete the chart to summarize your findings.

Add to my formatives list