Lesson Example Discussion Quiz: Class Homework |
Step-1 |
Title: Perimeter of Traiangle |
Grade: 1400-a Lesson: S3-L3 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Find the perimeter of a triangle having sides 4 cm, 8 cm and 6 cm. |
|
2 |
Step |
Given sides of a triangle are 4 cm , 6 cm and 8 cm |
|
3 |
Formula: |
Perimeter of Triangle (P) |
P = a + b + c |
4 |
Step |
Substitute the values |
P = 6cm + 4cm + 8cm P = 18 cm |
5 |
Step |
Therefore, the perimeter of a triangle (P) is 18 cm. |
|
6 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
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7 |
Choice.A |
Incorrect. It does not satisfy the triangle inequality theorem |
18 cm |
8 |
Choice.B |
It is correct because it satisfies both the triangle inequality theorem and the given perimeter condition |
12 cm |
9 |
Choice.C |
Incorrect. The sum of the other two sides must be greater than 14. 10 + 4 = 14, which is not greater than 14 |
16 cm |
10 |
Choice.D |
Incorrect. It satisfies the triangle inequality theorem, but it does not satisfy the given perimeter condition \$10 + 4 + 18 ≠ 25\$ |
11 cm |
11 |
Answer |
Option |
A |
12 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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