Lesson Example Discussion Quiz: Class Homework |
Step-1 |
Title: Perimeter of Triangle(based on angles) |
Grade: 4-a Lesson: S1-L8 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
If the perimeter of a triangle is 8 , and it has sides of 3 and 4 , what is the third side? |
|
2 |
Step |
The perimeter(P) of triangle is given, |
8 |
3 |
Step |
Given two sides of a triangle(a & b), |
3 & 4 |
4 |
Hint |
Now, we have to find the third side(c) |
|
5 |
Formula |
Perimeter of Triangle |
P = a + b + c |
6 |
Step |
Substitute the values in formula |
8 = 3 + 4 + c 8 = 7 + c |
7 |
Step |
Subtract 7 on both sides |
8 - 7 = 7 - 7 + c |
8 |
Step |
The c value is |
1 |
9 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
10 |
Choice.A |
This is correct because it satisfies the condition for the sum of the lengths of any two sides being greater than the length of the third side |
1 |
11 |
Choice.B |
This is not correct because it does not satisfy the equation for the perimeter |
2 |
12 |
Choice.C |
This is not correct because it does not satisfy the equation for the perimeter |
3 |
13 |
Choice.D |
This is not correct because it does not satisfy the equation for the perimeter |
4 |
14 |
Answer |
Option |
A |
15 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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