Lesson Example Discussion Quiz: Class Homework |
Step-5 |
Title: Geometry |
Grade: 4-a Lesson: S3-L8 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Find the volume and surface area of a cuboid with length 5 meters, width 8 meters, and height double its width. |
|
2 |
Step |
The given values are |
l = 5 meters, w = 8 meters |
3 |
Formula |
The given height is equal to double of its width |
h = 2w |
4 |
Step |
substitute width value in above formula |
h = \$2 times 8\$ h = 16 |
5 |
Step |
height of a cuboid is |
h = 16 meters |
6 |
Formula |
To find the total surface area and volume of a cuboid, you can use the following formula |
\$"TSA" = 2 (lw + lh + wh)\$ |
7 |
Step |
Now plug the value in the formula |
\$"TSA" = 2(5 times 8 + 5 times 16 + 16 times 8)\$ TSA = 2(40 + 80 + 128) |
8 |
Step |
After simplification we get |
TSA = 496 |
9 |
Step |
The surface area of cuboid is |
496 sq.meters |
10 |
Step |
To find the total surface area and volume of a cuboid, you can use the following formulas |
V = lwh |
11 |
Step |
Now plug the value in the formula |
V = \$5 times 8 times 16\$ v = 640 |
12 |
Step |
The volume of the cuboid is 640 cubic.meters |
|
13 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
14 |
Choice.A |
The given option exactly matches the surface area and volume of the cuboid. Therefore, it is the correct option |
640 \$meters^3\$ and 496 sq.meters |
15 |
Choice.B |
The given option does not match the surface area and volume of the cuboid. Therefore, it is the incorrect option |
646 \$meters^3\$ and 490 sq.meters |
16 |
Choice.C |
The given option does not match the surface area and volume of the cuboid. Therefore, it is the incorrect option |
696 \$meters^3\$ and 440 sq.meters |
17 |
Choice.D |
The given option does not match the surface area and volume of the cuboid. Therefore, it is the incorrect option |
644 \$meters^3\$ and 499 sq.meters |
18 |
Answer |
Option |
A |
19 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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