Lesson Example Discussion Quiz: Class Homework |
Step-5 |
Title: Area of 2D-shapes |
Grade: 1400-a Lesson: S3-L5 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Find the area of a regular hexagon of side 9cm. |
|
2 |
Step |
Given side is |
a = 9 cm |
3 |
Formula: |
The area (A) of a regular hexagon can be calculated using the formula |
A = \$(3 \sqrt 3)/2 (a)^2\$ |
4 |
Step |
Substitute the values into the formula |
A = \$(3 \sqrt 3)/2 (9)^2\$ |
5 |
Step |
After Simplify the equation |
A = \$((3 \sqrt 3) \times 81)/2\$ A = \$(243 \sqrt3)/2\$ |
6 |
Hint |
Now, calculate the numerical value of \$sqrt 3\$ is |
\$1.732\$ |
7 |
Step |
Substitute \$sqrt 3\$ value |
A = \$(243 \times 1.732)/2\$ A = \$420.876/2 = 210.44\$ |
8 |
Step |
So the area of the regular hexagon is \$210.44(cm)^2\$. |
|
9 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
10 |
Choice.A |
It is correct option because it accurately represents the area of a regular hexagon with a side length of 9 cm |
\$210.44(cm)^2\$ |
11 |
Choice.B |
This is the incorrect option. The answer is too small, which indicates a miscalculation |
\$20.44(cm)^2\$ |
12 |
Choice.C |
This is the incorrect option. The answer is too small, which indicates a miscalculation |
\$200.44(cm)^2\$ |
13 |
Choice.D |
This is the incorrect option. The answer is too small, which indicates a miscalculation |
\$201.44(cm)^2\$ |
14 |
Answer |
Option |
A |
15 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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