All ISEE Upper Level Math Resources
Example Questions
Example Question #1 : How To Find The Perimeter Of A Parallelogram
The area of the Parallelogram is . Give its perimeter in terms of .
The height of the parallelogram is , and the base is . By the 45-45-90 Theorem, . Since the product of the height and the base of a parallelogram is its area,
Also by the 45-45-90 Theorem,
, and
The perimeter of the parallelogram is
Example Question #1 : How To Find The Perimeter Of A Parallelogram
Calculate the perimeter of the above parallelogram if .
By the 45-45-90 Theorem,
The perimeter of the parallelogram is
Example Question #5 : Parallelograms
Calculate the perimeter of the above parallelogram if .
By the 30-60-90 Theorem:
, and
The perimeter of the parallelogram is
Example Question #284 : Isee Upper Level (Grades 9 12) Mathematics Achievement
Find the perimeter of a parallelogram with a base of 6in and a side of length 8in.
A parallelogram has 4 sides. A base (where the opposite side is equal) and a side (where the opposite side is equal). So, we will use the following formula:
where b is the base and s is the side of the parallelogram.
We know the base has a length of 6in. We also know the side has a length of 8in.
Knowing this, we can substitute into the formula. We get