Geometry

Home Geometry Lines, Rays, Line Segments and Planes Lines, Rays, Line Segments and Planes Worksheets Kids will get to know everything about points, lines, rays, line segments, and planes. Detailed definitions of all these concepts are given in the charts below. Naming each of them is the most important skill here. Different types of lines are also illustrated with images. You will learn to identify, label, and name points, lines, rays, planes and also measure line segments. Let’s discuss about each of them in detail: Point: Smallest shape in geometry which has zero dimensions. Line: A collection of points with no end points and no fixed length. Line Segment: A line with two end points and which can be measured. Ray: Starts from a point and extends to infinity in one direction. It cannot be measured. Plane: A flat surface that extends endlessly in all directions. To represent all the above using alphabets and symbols refer the image given below. Different types of lines like parallel, perpendicular, intersecting and concurrent lines are also discussed in detail. Word problems on all these concepts are also included. These problems are really interesting. You definitely need to try them all. A complete package to learn everything in detail. All worksheets are free and easy to download.   RELATED GEOMETRY TOPICS  :   2D Shapes,  3D shapes, Composing and Decomposing shapes, Symmetry Lines, Rays, Line Segments and Planes

Home Geometry Symmetry Symmetry Worksheets Symmetry is an easy and important concept which can be introduced to grade 4 kids. Symmetry worksheets here make kids understand that a line dividing an object or image into two equal halves, is known as line of symmetry and these split shapes are called symmetrical shapes. The split halves are mirror images. Figures which cannot be divided into two equal halves (same size and shape) or which does not have a line of symmetry are asymmetrical figures. Do all objects have only one line of symmetry?Consider different 2 dimensional and 3 dimensional shapes and try drawing their line or lines of symmetry. http://mathfunworksheets.com/2d-shapes/ http://mathfunworksheets.com/3d-shapes/ The answer is no. Not all shapes have only one line of symmetry. There are few objects which have two lines of symmetry. These objects can be divided into two equal halves in two ways. More than two lines of symmetry Some figures have more than two lines of symmetry, which means they can be split into equal size and shape in more than two ways. The below shown examples are figures which exhibit three and more lines of symmetry. Worksheets on Reflection symmetry are included here. Once familiar with symmetry, reflection symmetry is easy to deal with. These printable worksheets have practice pages to identify the line of symmetry, symmetrical and asymmetrical objects, counting the number of lines of symmetry, drawing the other half or the mirror image of the symmetrical object, cut- paste activity and much more. Download all and practice to the fullest. Symmetry worksheets free download pdf RELATED GEOMETRY TOPICS  :  2D Shapes, 3D Shapes, Lines rays line segments and planes, Composing and Decomposing shapes

Home Geometry 3D Shapes 3D Shapes Worksheets We have learnt everything about flat shapes, which are also called as 2- D shapes. http://mathfunworksheets.com/2d-shapes/ Here, we will concentrate on 3-D shapes or solids. They are solid objects that can be measured in three directions.  In these 3-D shapes worksheets, we will learn all the 3- dimensional shapes and their properties. Consider representing these shapes on three axis-  x, y and z axis. Thus the measurable attributes on three axis are length, width and height (depth or thickness). A few three dimensional shapes are shown below. All 3- D shapes have faces, edges and vertices. The flat surfaces of the cube are called faces. A cube has 6 faces. The line segment where two faces meet are edges. A cube has 12 edges. Vertex is where three edges meet. A cube has 8 vertices. We have a number of 3- D objects around us. Almost all the things we handle are solids. Your tea cup, mobile, laptop are all 3- D objects. Now that your familiar with 3- D shapes, download worksheets for practice. All are free to use and are easily accessible. 3D Shapes Worksheets

Home Geometry 2D Shapes 2D Shapes Worksheets Worksheets on 2-D Shapes for kids help them learn the basic and standard shapes. Colorful charts make kids recognize various 2-D shapes. What does 2-D shape mean? 2-D is two dimension. That is, shapes are represented on the x and y  axis or on a horizontal and vertical plane. A few 2-D shapes to name are square, rectangle, heart, star, rhombus, trapezoid . In detail, you will learn the properties of all 2-D shapes. Properties describes the sides, angles, vertices, diagonals and more. A combination of worksheets and activities here makes learning much interactive. Try them here 2D Shapes worksheets free download pdf

Home Geometry Complementary and Supplementary Angles Complementary and Supplementary Angles Worksheets Problems on complementary and supplementary angles are most easy to solve if you just remember the numbers 90 and 180. With the definitions given below, you will know how these numbers have been used in angles. You have ample problems to identify and calculate the missing measure of angles. Linear equations are also involved to calculate the measure of angles. Complementary angles are two angles whose sum is 90°. So, the complement of 50° is (90 – 50), that is 40°. The complement of 40° is just the reverse, which is 50°. Supplementary angles are two angles whose sum is 180°. It can also be called linear pair of angles. The sum of a pair of linear angles is always 180°. Thus, the supplement of 55° is (180 – 55), that is 125°. The supplement of 125° is 55°, the vice versa. The first few worksheets would deal with the basics. Then, to find missing angles. In the end, three exclusive worksheets have 5 word problems in each sheet. All you need to do is to form equations and solve for the unknown variable to find the measure of angles. All the best practice materials are available here for free download. Print them at once! Complementary and Supplementary Angles