Lesson Example Discussion Quiz: Class Homework |
Step-4 |
Title: Perimeter of Triangle(based on sides) |
Grade: 4-a Lesson: S1-L7 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
In an acute triangle, the side lengths are 5 cm, 6 cm, and 7 cm. What is the perimeter of the triangle? |
|
2 |
Formula |
Perimeter of a acute angle triangle is |
P = a + b + c |
3 |
Step |
The lengths of a triangle are |
5 cm, 6 cm, 7 cm |
4 |
Step |
Substitute the values |
P = 5 + 6 + 7 |
5 |
Step |
Simplification |
P = 18 |
6 |
Step |
Then the perimeter of acute angle triangle is 18 cm. |
|
7 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
8 |
Choice.A |
This is not correct because it does not represent the correct sum of the side lengths of the triangle |
24 cm |
9 |
Choice.B |
This is not correct because it does not represent the correct sum of the side lengths of the triangle |
22 cm |
10 |
Choice.C |
This is not correct because it does not represent the correct sum of the side lengths of the triangle |
20 cm |
11 |
Choice.D |
This is correct because the perimeter of the triangle is indeed 18 cm. |
18 cm |
12 |
Answer |
Option |
D |
13 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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