Lesson Example Discussion Quiz: Class Homework |
Step-4 |
Title: Area of Triangle |
Grade: 1300-a Lesson: S3-L2 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Find the height of a triangle whose area of 420 cm² and a base of 60 cm. |
|
2 |
Step |
Given base (b) Area of triangle(A) |
60 cm 420 cm² |
3 |
Formula: |
Area of Triangle |
A = \$(1/2) \times (b) \times (h)\$ |
4 |
Step |
We are currently determining the height value (h) |
h = \$(2 times A)/b\$ |
5 |
Step |
Substitute the values into the height formula |
h = \$(2 times 420(cm)^2)/60 cm\$ |
6 |
Step |
Calculate for height(h) |
h = \$(840(cm)^2)/60cm\$ = 14 cm |
7 |
Step |
Therefore, the height(h) of the triangle is 14 cm. |
|
8 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
9 |
Choice.A |
Choice A is incorrect, because the calculated height differs from the actual measurement |
11 cm |
10 |
Choice.B |
It is correct because it corresponds to the calculated height using the given formula and values |
14 cm |
11 |
Choice.C |
Choice C is incorrect, because it is less than the correct answer |
10 cm |
12 |
Choice.D |
Choice D is incorrect, because it is greater than the correct answer |
18 cm |
13 |
Answer |
Option |
B |
14 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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