# Ied activity 5.1 answer key. PLTW

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## Activity 5.2a Geometric Constraints

With the latest developments in learning science and technology, we identify and address your needs with resources you can trust. Where an ellipse looks like a circle that has been compressed in one direction 2. Why is it important to use constraints when sketching with your 3D modeling program? We will talk about dimension constraints and assembly constraints later in this lesson. You will also learn how to calculate the dimensions and area of a shape. However, you can also manually apply geometric constraints to a sketch to force the geometry to behave in a way that you intend. A circumscribed shape is one that has edges that are tangent to the perimeter of a circle 3.

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## Applied Statistics

The standard deviation shows how many of the measured objects will be between 68, 95, and 99. But pattern tools are also available outside of the sketch environment to create patterns of features such as holes or protrusions. In this activity we will explore geometric constraints. Circle is a continuous and uniform curve. We will represent this data using a histogram. . Be sure to dimension the shape.

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## Activity 5.2a Geometric Constraints

Why is it impossible for a triangle to contain a 180° angle? Some must be applied manually because they are not apart of the default shapes that you can use; a triangle tangent to a circle and one side parallel to a square. Some constraints are automatically applied by the software because they are already used when you place in that default shape. Sweep, workplane, line, circle, Project reality For each of the following, sketch a 2D shape and an axis of rotation that you could use to model each of the following solid forms using the Revolve function within 3D modeling software. You may use software to check your answers. Calculator use is encouraged, but you must show all of your work. Why are some constraints automatically applied by the software, but you must manually apply others? What is the difference between an inscribed and a circumscribed shape? Use the notes contained in your engineering notebook to help you perform the necessary calculations. Both have sides that are equal length with opposite edges being parallel to each other 5.

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## Activity 5.5a

For instance, sketch components such as points or shapes can be patterned within a sketch. Use points, construction lines, and object lines to sketch the shapes described in the first seven word problems. Statistics are most useful when wanting correct measurements of an object. What is the difference between a circle and an ellipse? In inscribed shape is one that has corners that occur on the perimeter of a circle. What is the difference between a right, acute, and obtuse triangle? For example: Squares have 2 sets of parallel lines and all sides are congruent along with other constraints. Examples of geometric constraints include parallel, perpendicular, concentric, and equal. Introduction There are several types of constraints that can be applied within a 3D solid modeling program to control the geometry associated with a solid model: geometric constraints, dimension constraints, and assembly constraints.

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## Activity 5.1 Calculating Property Shapes

How is a rhombus similar to a square? Dimension each sketch and indicate the axis of rotation that you would use. A triangle is comprised of three angles that must add up to 180 degrees, to be considered an angle the distance between two intersecting lines must be greater than 0 degrees 4. Constraints are vital when sketching while using your 3D modeling program because they get rid of human error and allow you to place 2D sketches where they need to be. What rotation angle would you use? Procedure In this activity you will broaden your knowledge of shapes and your ability to sketch them. As you work through the exercises in this activity, pay particular attention to the environment in which you are working.

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## Activity 5.5a

These flashcards will help you gain a firm grasp on the foundations and equations. Statistics show correct measurements for an object and it takes it deeper by showing the mean, median, mode, and standard deviation. . . . .

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