Lesson Example Discussion Quiz: Class Homework |
Step-1 |
Title: Area and Perimeter |
Grade: 6-a Lesson: S2-L6 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
If one of the bases of a trapezoid is equal to 15 units, its height is 26 units, and its area is 356 square units, find the length of the other base. |
|
2 |
Step |
The given value are |
b = 15 units and h = 26 units and area = 356 sq.units |
3 |
Formula: |
The area of trapezoid is |
\$A = 1/2 times (sum of bases) times height\$ |
4 |
Hint |
The length of other base |
15 + b |
5 |
Step |
Now substitute the values |
\$356 = 1/2 times (15 + b) times 26\$ |
6 |
Step |
After simplification |
\$356 = 13 times (15 + b)\$ |
7 |
Step |
After simplification |
\$ (356) /13 = 15 + b\$ |
8 |
Step |
After simplification |
27.38 = 15 + b |
9 |
Step |
After simplification |
27.38 -15 = b |
10 |
Step |
After simplification |
b = 12.38 units |
11 |
Step |
The length of the other base is b = 12.38 units |
|
12 |
Sumup |
Can you summarize what you’ve understood in the above steps? |
|
13 |
Choice.A |
12 units is not correct because it doesn’t match the calculated value for the length of the other base |
12 units |
14 |
Choice.B |
12.38 units is correct because it match the calculated value for the length of the other base |
12.38 units |
15 |
Choice.C |
12.5 units is not correct because it doesn’t match the calculated value for the length of the other base |
12.5 units |
16 |
Choice.D |
12.83 units is not correct because it doesn’t match the calculated value for the length of the other base |
12.83 units |
17 |
Answer |
Option |
B |
18 |
Sumup |
Can you summarize what you’ve understood in the above steps? |
|
Copyright © 2020-2022 saibook.us Contact: info@saibook.us Version: 1.5 Built: 14-February-2024 08:10 PM EST