Lesson Example Discussion Quiz: Class Homework |
Step-1 |
Title: Circumference of a Circle |
Grade: 4-a Lesson: S2-L4 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
A bicycle wheel has a diameter of 26 inches. Find its circumference. |
|
2 |
Step |
The given diameter is |
26 inches |
3 |
Formula |
Find the circumference of circle |
C = 2πr [π = 3.1415] |
4 |
Formula |
Here the radius is |
r = \$d/2\$ |
5 |
Step |
Substitute the diameter value in radius formula |
r = \$ \cancel (26)^13 / (\ cancel 2)\$ |
6 |
Step |
After cancellation |
r = 13 |
7 |
Step |
Substitute the radius value in the circumference of a circle |
C = \$ 2 \times π \times 13\$ |
8 |
Step |
After simplification |
C = 81.68 inches |
9 |
Step |
The circumference of the circle is C = 81.68 inches. |
|
10 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
11 |
Choice.A |
This is incorrect because which is not consistent with the correct calculation |
81.86 in |
12 |
Choice.B |
This is incorrect because it seems to have doubled the correct value |
163.36 in |
13 |
Choice.C |
This is correct because it correctly calculates the diameter based on the provided circumference |
81.68 in |
14 |
Choice.D |
This is incorrect because it seems to have doubled the correct value |
163.63 in |
15 |
Answer |
Option |
C |
16 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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