Lesson Example Discussion Quiz: Class Homework |
Step-2 |
Title: Quadrilaterals( Trapezium , Parallelogram) |
Grade: 6-a Lesson: S2-L6 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
The perimeter of a parallelogram is 40 cm. If the height of the parallelogram is 10 cm and the length of the adjacent side is 8 cm, find its area. |
|
2 |
Step |
The Perimeter of the parallelogram |
40 cm |
3 |
Step |
The length of the adjacent side is |
8 cm |
4 |
Step |
The height of the parallelogram is |
10 cm |
5 |
Formula |
Perimeter of parallelogram |
P = 2 (Adjacent side + Base) |
6 |
Step |
Now plug the values into the formula |
40 = 2(8 + B) |
7 |
Step |
Divide 2 on both sides |
20 = 8 + B |
8 |
Step |
Subtract 8 on both sides and then base value |
20 - 8 = 8 - 8 + B B = 12 cm |
9 |
Formula |
Area of parallelogram |
A = \$"Base" \times "height"\$ |
10 |
Step |
Now plug the values into the formula |
A = \$12 \times 10\$ A = 120 sq.cm |
11 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
12 |
Choice.A |
This is not correct because it does not match the correct calculation of the perimeter of a parallelogram |
110 sq.cm |
13 |
Choice.B |
This is not correct because it does not match the correct calculation of the perimeter of a parallelogram |
123 sq.cm |
14 |
Choice.C |
This is correct because it match the correct calculation of the perimeter of a parallelogram |
120 sq.cm |
15 |
Choice.D |
This is not correct because it does not match the correct calculation of the perimeter of a parallelogram |
115 sq.cm |
16 |
Answer |
Option |
C |
17 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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