SaiBook.us Geometry

Home Course Section

Register Enroll Refer

Step-5

Title: Area of Parallelogram

Grade: 7-a Lesson: S4-L1

Explanation:

Step	Type	Explanation	Answer
1	Problem	If the perimeter of a parallelogram is 30 m and the base is 10 m. Find the side of the parallelogram.
2	Given	Perimeter of parallelogram is 30 m and base of parallelogram is 10 m.
3	Step	Using the perimeter of parallelogram formula, we will find side of the parallelogram.
4	Formula:	The perimeter of the parallelogram is given by	\$P = 2(a + b)\$.
5	Step	Substitute 30m for P and 10m for b.	\$30 m = 2(a + 10 m) \$
6	Step	Cancel out the common factor.	\$ \cancel{30} ^{15} m = \cancel{2} ^{1}(a + 10 m) \$
7	Step	Subtract.	\$a = 5 m \$
8	Step	Answer	Side of parallelogram is \$5 m\$.

Step

Type

Explanation

Answer

Problem

If the perimeter of a parallelogram is 30 m and the base is 10 m. Find the side of the parallelogram.

Given

Perimeter of parallelogram is 30 m and base of parallelogram is 10 m.

Step

Using the perimeter of parallelogram formula, we will find side of the parallelogram.

Formula:

The perimeter of the parallelogram is given by

\$P = 2(a + b)\$.

Step

Substitute 30m for P and 10m for b.

\$30 m = 2(a + 10 m) \$

Step

Cancel out the common factor.

\$ \cancel{30} ^{15} m = \cancel{2} ^{1}(a + 10 m) \$

Step

Subtract.

\$a = 5 m \$

Step

Answer

Side of parallelogram is \$5 m\$.