Lesson Example Discussion Quiz: Class Homework |
Step-1 |
Title: Area and Perimeter |
Grade: 4-a Lesson: S1-L6 |
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 the shape. |
|
2 |
Step |
The given shape is an isosceles triangle. |
|
3 |
Step |
The sides of an isosceles triangle are |
a = 10 ft., b = 5 ft. |
4 |
Formula: |
The perimeter of an isosceles triangle is |
P = 2a + b |
5 |
Clue |
Substitute the values by using formula |
P = 2(10) + 5 |
6 |
Step |
After multiplication we get |
P = 20 + 5 |
7 |
Step |
After addition, we get |
P = 25 |
8 |
Step |
Therefore, the perimeter of an isosceles triangle is |
P = 25 ft. |
9 |
Answer |
A |
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