Math 30S Exam Review Flashcards

Flashcards covering key terms and concepts from the lecture notes on scale representations, drawing in scale, two-dimensional representations, perspective drawing, isometric drawings, and exploded views & component parts.

Define Proportional

When two fractions are equal to each other.

What is a Scale Statement?

A ratio that compares the size of a scale object to the size of the original object.

What is a Scale Factor?

The number by which all the dimensions of the original figure must be multiplied by to produce a scale figure.

Scale statement =

Scale : Original

Scale factor =

Scale / Original

What are Similar Figures?

Figures that have the same shape but are not necessarily the same size.

What is the relationship between a scale drawing and the original object?

The measures of the diagram and the object have the same ratio.

What is the top view?

Looking down on the object.

What is the front view?

Provide what the object looks like from the front.

What is the right view?

Provide what the object looks like from the right.

What is Perspective Drawing?

A representation of a 3-D object in 2-D.

What is the Horizon Line?

The line in a perspective drawing where the earth meets the sky.

What is the Vanishing Point?

The point on the horizon line at which lines or edges that are parallel appear to converge or meet.

What is an Orthogonal Line?

In perspective drawings, it is the line you draw from the top (or corner) of an object to the vanishing point; it establishes the illusion of the object getting smaller as it gets farther away.

What is Isometric Drawing?

A representation of a 3-D object where the same scale is used to draw the height, width, and depth.

What are Exploded View Diagrams?

Diagrams that show how the components of an object fit together.

What is visible in an Exploded Diagram?

Parts of an object that are normally hidden in a drawing are visible.

What are Component Parts Diagrams?

Diagrams that show constituent parts identify the individual pieces of materials that are being used but are sketched in two dimensions as a flat picture.