Lesson Example Discussion Quiz: Class Homework |
Step-1 |
Title: Area of 2D-Shapes |
Grade: 6-a Lesson: S4-L1 |
Explanation: Let us verify the answer here with the steps. |
Lesson Steps Head1
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
An American flag has a perimeter of 16 feet. One side of the flag is 6 feet long. What is the area of the flag? |
|
2 |
Step |
The perimeter of flag is |
16 ft |
3 |
Formula |
The perimeter of a rectangle is |
P = 2(l + w) |
4 |
Step |
One side (L) is given |
16 ft |
5 |
Step |
Now plug the values into the formula |
16 = 2(6 + w) |
6 |
Step |
After simplification |
16 = 12 + 2w |
7 |
Step |
Subtract 12 on both sides: |
16 - 12 = 12 - 12 + 2w 2w = 4 |
8 |
Step |
Divide 2 on both sides |
\$(2w)/2\$ = \$4/2\$ w = 2 |
9 |
Step |
So, the dimensions of the American flag are 6 feet in length and 2 feet in width. |
|
10 |
Formula |
To find the area of the flag, use the formula for the area of a rectangle: |
\$"Area" ="Length (L)" times "Width (W)"\$ |
11 |
Step |
Now plug the values into the formula: |
A = \$6 \times 2\$ = 12 sq.ft |
12 |
Step |
So, the area of the American flag is 12 sq.ft. |
|
13 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
14 |
Choice.A |
This is an incorrect option as it doesn’t represent the area, and the area is not equal to the perimeter |
16 sq.ft |
15 |
Choice.B |
This is not the correct answer based on the calculations |
18 sq.ft |
16 |
Choice.C |
This is not the correct answer based on the calculations |
15 sq.ft |
17 |
Choice.D |
This is the correct answer based on the calculations |
12 sq.ft |
18 |
Answer |
Option |
D |
19 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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