![]() ![]() Has it been slid? Yes, so we know that this is a translation. Has it been turned or rotated? No, so it’s not a rotation. Yeah! They are identical in shape and size, but what type of movement has been made? Was it flipped like the last one? No. We can see that they are different sizes by placing them on top of one another. What type of movement is this? Well, it looks like they were just flipped, right? If we imagine that there is a line through the middle, we can see that they have been flipped across the line. Yeah! We can see that they are identical however, they have been moved. To see this more clearly, we can place them on top of one another. We can see that they are different sizes, and one star has six points while the other one has five. If they’re congruent, then identify how they have been moved-by reflection, rotation, or translation. Identify if the following shapes are congruent or not. The two arrows above are identical in shape and in size, so we know that they are congruent. The two triangles above are congruent as well, but they have been rotated, or turned. It is still the exact same triangle, the only difference is that it has been flipped. The two triangles above are congruent, but they have been flipped across the y-axis. So you are not turning it or flipping it, you are just sliding it. A translation happens when you move a shape by just simply sliding it in any direction. In geometry, two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the. The third, and final, movement is a translation. It’s almost as if the object is looking at itself in the mirror. A reflection happens when an object is flipped across an imaginary line, or axis. One way you can move a congruent shape is by turning it, or rotating it. The first movement we will talk about is a rotation. Moving the object using one of these three movements may change the position or the way that the shape looks, but the shape itself will always remain the same. There are a few different ways you can move congruent objects. All the sides of each shape must be identical. This is what we call congruent objects – shapes that can be flipped, turned, slid to make the same shape. It looks pretty different, right? But aren’t all the sides still the same? If I flip it back, we can clearly see that the two objects are the same. Hey, guys! Welcome to this video on congruent objects. ![]()
0 Comments
Leave a Reply. |