Curated OER
Regular & Irregular Polygons
In this polygons worksheet, 7th graders identify and complete 8 different problems that include determining the types of various polygons. First, they use the table to the left to color each of the polygons illustrated. Then, students...
Curated OER
Countdown Challenge: Live Symmetry in Regular & Irregular Polygons
In this symmetry worksheet, students identify lines of symmetry in given polygons. They discover the correlation between the number of sides and the number of lines of symmetry. Students determine the lines of symmetry in irregular...
Curated OER
Regular or Irregular Polygons
In this geometry skills worksheet, students respond to 6 questions that require determine whether 6 geometric shapes are regular or irregular polygons.
Curated OER
Regular or Irregular Polygons
In this polygons activity, students decide whether each shape is a regular polygon or an irregular polygon. Students complete 6 problems.
Illustrative Mathematics
Polygons
Identify shapes based on their attributes. Second graders are tasked to color triangles, quadrilaterals, pentagons, and hexagons specific colors. The one thing these shapes have in common? They are all polygons.
Willow Tree
Interior Angles, Exterior Angles, and Diagonals of Polygons
How does the number of sides of a polygon affect the angle measures? Learners recognize a pattern in finding the total measure of interior and exterior angles and the number of diagonals. They use the patterns to calculate the number of...
Alberta Learning
Area and Perimeter of Irregular Shapes
Evaluate young mathematicians' understanding of area and perimeter with this series of three assessment tasks. Challenging students to not only calculate the area and perimeter of irregular shapes, but to explain in writing their...
Virginia Department of Education
Angles in Polygons
Polygons — it's all about the angles. Groups work with dynamic geometry software to find the sum of the measures of the angles of various polygons. After finding the information for several polygons, the groups generate a formula that...
Curated OER
Area of Irregular Polygons
In this geometry worksheet, 10th graders determine the area of irregular polygons. The one page worksheet contains three problems. Solutions are provided.
Curated OER
Area of Polygons
In this math worksheet, students find the area and perimeter of the regular and irregular polygons. They pay attention to use the proper measurements for calculation.
Curated OER
Regular or Irregular? Polygons
In this polygon worksheet, students determine whether a set of given polygons are irregular or regular. A reference web site is given for additional activities.
Curated OER
Quadrilaterals and Other Polygons
In this quadrilaterals and other polygons worksheet, learners name various polygons and then decide if each polygon is a quadrilateral. Students also decide is certain polygons regular or irregular.
Math eBook
Perimeter Worksheet
In this perimeter worksheet, students find the perimeter of given regular and irregular polygons. This four-page worksheet contains 20 problems. This interactive worksheet may be completed online or printed for paper use.
Government of Hong Kong
Areas and Volumes - 2D Shapes
Unfortunately for young mathematicians, the world isn't made entirely of parallelograms, triangles, and trapezoids. After first learning the area formulas for these common shapes, students apply this new knowledge to determine the area...
Curated OER
Area and Perimeter
Learners find the area and perimeter of regular polygons and composite figures and examine the effect on the area and perimeter of a figure if the dimensions are multiplied by a constant. The nine page worksheet contains thirty-seven...
National Security Agency
Awesome Area - Geometry and Measurement
Break out those math manipulatives, it's time to teach about area! Capturing the engagement of young mathematicians, this three-lesson series supports children with learning how to measure the area of squares, rectangles, and other...
Curated OER
Math Worksheet: Area (3)
In this area worksheet, students find the area of one irregular polygon. Students find the area by dividing the irregular polygon into multiple regular polygons.
Curated OER
Computing Perimeters of Rectangles
In this math learning exercise, learners compute the perimeters of rectangles, regular polygons, and irregular polygons. Students also compute the circumferences of four circles, given the radius.
Curated OER
Area of Shapes
In this geometry worksheet, learners find the area of squares, rectangles, and non traditional shapes. Students complete 5 problems on this worksheet.