Lesson Example Discussion Quiz: Class Homework |
Step-3 |
Title: Perimeter of Triangle |
Grade: 6-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 |
What is the Perimeter of an Isosceles Triangle having equal sides of 20 cm and uneqal side 13 cm. |
|
2 |
Step |
The length of the two sides of a triangle is given:(a) |
20 cm |
3 |
Step |
The length of the unequal sides of a triangle is given: (b) |
13 cm |
4 |
Formula |
Perimeter of Isosceles Triangle |
P = 2a + b |
5 |
Step |
Substitute the values |
P = 2(20) + 13 |
6 |
Step |
Multiplying numbers produces a new numerical value. |
P = 40 + 13 |
7 |
Step |
After addition, the value we get |
P = 53 |
8 |
Step |
The perimeter of an isosceles triangle is 53 cm. |
|
9 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
10 |
Choice.A |
The option is incorrect as the perimeter of an isosceles triangle does not match the given answer |
10 cm |
11 |
Choice.B |
The option is correct as the perimeter of an isosceles triangle matches the answer, making it the right choice |
53 cm |
12 |
Choice.C |
The option is incorrect as the perimeter of an isosceles triangle does not match the given answer |
40 cm |
13 |
Choice.D |
The option is incorrect as the perimeter of an isosceles triangle does not match the given answer |
13 cm |
14 |
Answer |
Option |
B |
15 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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