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Step-4

Title: Computing Perimeter of Rectangle

Grade: 2-a Lesson: S1-L7

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	l = 4 cm , b = 2 cm then P = ?
2	Definition:	Perimeter of a rectangle is	p = 2(l + b)
3	Step	The length of a rectangle is given	4 cm
4	Step	The breadth of a rectangle is given	2 cm
5	Step	Substitute the values	p = 2(4 + 2)
6	Step	Simplification	p = 2(6)
7	Step	So, the answer is	p = 12
8	Step	Then the perimeter is	12 cm
9		Answer	A

Step

Type

Explanation

Answer

Problem

l = 4 cm , b = 2 cm then P = ?

Definition:

Perimeter of a rectangle is

p = 2(l + b)

Step

The length of a rectangle is given

4 cm

Step

The breadth of a rectangle is given

2 cm

Step

Substitute the values

p = 2(4 + 2)

Step

Simplification

p = 2(6)

Step

So, the answer is

p = 12

Step

Then the perimeter is

12 cm

Answer