Lesson Example Discussion Quiz: Class Homework |
Step-1 |
Title: Volume of Pyramid |
Grade: 4-a Lesson: S3-L7 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
What is the volume of a triangular pyramid whose base area is 145 sq.in and height is 15 inches? |
|
2 |
Step |
The given values are |
B = 145 sq.in and h = 15 in |
3 |
Step |
To find the volume of a triangular pyramid formula is |
\$"V_tri-pyramid" = 1/3 times "A_base" times h\$ |
4 |
Step |
Now plug the values in the formula |
\$"V_tri-pyramid" = 1/3 times 145 times 15\$ |
5 |
Step |
Make it simpler |
\$"V-tri-pyramid" = (2175)/3\$ \$"V_tri-pyramid" = 725\$ cum.in |
6 |
Step |
Therefore, the volume of the triangular pyramid is \$725 "in"^3\$ |
|
7 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
8 |
Choice.A |
This is correct because it matches the calculated volume of 725 cu.in |
725 cu.in |
9 |
Choice.B |
This is incorrect because it does not match the calculated volume of 527 cu.in |
527 cu.in |
10 |
Choice.C |
This is incorrect because it does not match the calculated volume of 752 cu.in |
752 cu.in |
11 |
Choice.D |
This is incorrect because it does not match the calculated volume of 572 cu. in |
572 cu.in |
12 |
Answer |
Option |
A |
13 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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