Lesson Example Discussion Quiz: Class Homework |
Step-3 |
Title: Angles |
Grade: 6-a Lesson: S2-L3 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
In a triangle, XYZ, the measure of ∠X is 70°, and the measure of ∠Y is 36°. Find the measure of ∠Z. |
|
2 |
Clue |
The sum of angles in a triangle is 180°. |
|
3 |
Step |
The measure of ∠X and ∠Y |
70° and 36° |
4 |
Step |
Now, we find the ∠z |
⇒ ∠X + ∠Y + ∠Z = 180° ⇒ 70° + 36° + ∠Z = 180° ⇒ 106° + ∠Z = 180° |
5 |
Step |
Subtract 106° on both sides |
⇒ 106° - 106° + ∠Z = 180° - 106° ⇒ ∠Z = 74° |
6 |
Step |
The measure of ∠Z is 74°. |
|
7 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
8 |
Choice.A |
This is not correct because it does not satisfies the equation |
47° |
9 |
Choice.B |
This is not correct because it does not satisfies the equation |
58° |
10 |
Choice.C |
This is correct because it satisfies the equation |
74° |
11 |
Choice.D |
This is not correct because it does not satisfies the equation |
96° |
12 |
Answer |
Option |
C |
13 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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