Classifying Geometric Shapes

Classifying Geometric Shapes Stacie Pullum 5th Grade Mountain Road Elementary School

A polygon is a closed figure made up of three or more line segments. This triangle has three sides and three angles.

A regular polygon is one in which all sides have equal length and all angles have equal measure. A square is a quadrilateral with four equal sides and four equal angles.

Identify one of the polygons on the page below by clicking on the shape.

Sorry, go back on the information page for this section by clicking on the picture below.

Congratulations!

Click on the shape that is not a polygon.

Let’s look at the number of sides and angles of a few polygons. A pentagon has five sides and five angles. A hexagon has six sides and six angles. An octagon has eight sides and eight angles.

Looking at the shape below, count the number of sides and angles. Click on the word to the right that identifies the shape. hexagon pentagon triangle square

Let’s apply this to the real world. Looking at the picture below, count the number of sides and angles. Click on the word to the right that identifies the shape. hexagon pentagon triangle square

Classifying triangles can be accomplished by using the measurements of the angles as well. A right triangle has one measurement of 90 degrees (one right angle). An acute triangle has three angles that each measure less than 90 degrees (three acute angles). An obtuse triangle has one angle measuring more than 90 degree, but less than 180 degrees (one obtuse angle).

Let’s practice classifying triangles by degrees first! Look at the measurements of the triangle below and to the right, select an answer on the right by clicking. acute angle right angle obtuse angle 94 °

Identify the right triangle by clicking on it please.

In order to be classified as an acute angle, the triangle must have three angles measuring ______ _____ ______ degrees. Select from the choices below by clicking with the mouse. more than 90 ° less than 90 ° exactly 90 °

Classifying triangles can also be done by the number of sides. A scalene triangle does not have any sides that are the same length. An isosceles triangle has two sides the same length. An equilateral triangle has all sides the same length.

Let’s practice! Look at the triangles below. Select the equilateral triangle by clicking on the picture.

Let’s practice again! Look at the triangles below. Select the isosceles triangle by clicking on the picture.

Try another one. Look at the triangles below. Select the scalene triangle by clicking on the picture.

How are you doing so far? If you need more practice with triangles, please take a break and see your teacher. If everything is going okay, click the next arrow.

Classifying quadrilaterals can be challenging. A quadrilateral is a polygon with four sides and four angles. Look below at the five shapes that are considered quadrilaterals. In order to hear the definition of each shape, click on the speaker under the name. rectangle trapezoid rhombus parallelogram square

Let’s look at a Parallelogram. A parallelogram is a quadrilateral with both pairs of opposite sides equal in length and parallel.

Thinking about the parallelogram and the other quadrilaterals, how many quadrilaterals are also parallelograms? 5 3 4 2 Click the help button for a hint.

Let’s look at a Trapezoid. A trapezoid is a quadrilateral with only one pair of parallel sides.

Please answer the following statement by clicking true or false below. A trapezoid is a parallelogram. True False

Please answer the following statement by clicking true or false below. A rhombus is a parallelogram With four right angles. True False

Classifying Geometric Shapes

Classifying Geometric Shapes

Presentation Transcript

Geometric Shapes

Geometric Shapes

Geometric and Organic Shapes

Chapter 12 Geometric Shapes

Euler’s Formula Classifying Three Dimensional Shapes Any Observations?

Geometric Shapes and Area

Geometric Shapes and Area

Geometric Shapes

Equality of area of geometric shapes

Geometric Shapes

Geometric Shapes Lesson 1

Geometric Shapes in Architecture

Geometric Shapes and Formulas

Semimodular lattices and geometric shapes

Reviewing Geometric Shapes

Geometric Shapes

Interpretation of Geometric Shapes

Geometric Shapes Lesson 1

Geometric Shapes 1 st Grade Math

Geometric Shapes

Geometric Reasoning with Shapes and Attributes