Ratio and Scale Factor of Perimeters and Areas Worksheets
Comprehend how the scale factor impacts side lengths, perimeters and areas of similar shapes with this gamut of scale factor worksheets. Also, learn to find the ratio of areas and perimeters of similar polygons. The worksheets are available in both customary and metric units. Recommended for grade 7 and grade 8 children.

Download the Complete Set
(U.S. Customary Units  962 KB)(Metric Units  950 KB)
Relation between scale factors and ratios
Compare the similar figures and answer the series of questions that follow. Find the area, perimeter and scale factor, understand the influence of scale factor on ratio of areas and perimeters as well.

Download the set
(3 Worksheets)
Area and perimeter  Table form
Packed in these worksheets are tables with missing parameters. Complete them by determining the ratio and perimeter in Table A, ratio and area in Table B; based on the provided scale factor.

Download the set
(3 Worksheets)
Reiterate the concept of scale factor by applying it to solve word problems. Compute the area and perimeter of similar triangles and similar polygons.

Download the set
(3 Worksheets)
Categorized into two levels, the worksheets feature exercises to calculate the perimeter of the original or scaled image applying the given scale factor in Level 1, while the side length assists in finding the perimeter in Level 2.
Two levels of difficulty with 3 worksheets each

Download the set
(6 Worksheets)
Specifically dealing with determining the area of similar shapes, using the given scale factor in level 1 and side length in Level 2, the problems can be easily solved by applying the area of similar polygons theorem.
Two levels of difficulty with 3 worksheets each

Download the set
(6 Worksheets)
Perimeter and area of similar figures
Structured into two levels, the PDFs consist of simple word problems to figure out the area or perimeter of the original or dilated image and the impact of scale factor on the ratio of areas and perimeters.
Two levels of difficulty with 3 worksheets each

Download the set
(6 Worksheets)
Missing sides of similar figures
Determine the missing sides of similar triangles or similar polygons using the information provided. Few problems are offered in the word format.

Download the set
(3 Worksheets)