Lesson Example Discussion Quiz: Class Homework |
Step-2 |
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 |
Find the perimeter of an acute triangle ABC in which the sides are given as, AB = 7 units, BC = 8 units, and CA = 5 units. |
|
2 |
Step |
The given side AB is |
7 units |
3 |
Step |
The given side BC is |
8 units |
4 |
Step |
The given side CA is |
5 units |
5 |
Hint |
Perimeter of triangle is(P) |
P = AB + BC + CA |
6 |
Step |
Substitute the vlaues |
P = 7 + 8 + 5 P = 20 |
7 |
Step |
So, the perimeter of the acute triangle is 20 units. |
|
8 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
9 |
Choice.A |
This is not correct because it appears to be the sum of the three side lengths rather than the actual perimeter |
27 units |
10 |
Choice.B |
This is not correct because it appears to be the sum of the three side lengths rather than the actual perimeter |
25 units |
11 |
Choice.C |
This is not correct because it appears to be the sum of the three side lengths rather than the actual perimeter |
22 units |
12 |
Choice.D |
This is correct for the perimeter of the given acute triangle |
20 units |
13 |
Answer |
Option |
D |
14 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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