SATⅡ数学 最新内容

Plane Geometry

2007-11-22 00:00:00

Roughly 20 percent of the questions on the Math IC test cover plane geometry. In addition, questions that deal more specifically with s...

Lines and Angles

2007-11-22 00:00:00

A line is a collection of points that extends without limit in a straight formation. A line can be named by a single letter, like line ...

Polygons

2007-11-22 00:00:00

Polygons are enclosed geometric shapes that cannot have fewer than three sides. As this definition suggests, triangles are actually a t...

Circles

2007-11-22 00:00:00

Circles are another popular plane-geometry test topic. Unlike polygons, all circles are the same shape and vary only in size. Circles h...

Key Formulas of Plane Geometry

2007-11-22 00:00:00

Pythagorean Theorema2 + b2 = c2, where a and b are the lengths of the legs of a right triangle, and c is the length of the hypotenuse. ...

Solid Geometry

2007-11-29 00:00:00

Solid geometry adds literally another dimension to the plane geometry explained in the previous chapter—instead of squares and circles...

Prisms

2007-11-29 00:00:00

Most of the solids you’ll see on the Math IC test are prisms, or variations on prisms. A prism is defined as a geometric solid with tw...

Solids That Aren’t Prisms

2007-11-29 00:00:00

Some of the solids that appear on the Math IC do not have two congruent bases that lie in parallel planes, so they cannot be considered...

Relating Length, Surface Area, and Volume

2007-11-29 00:00:00

The Math IC tests not only whether you’ve memorized the formulas for the different geometric solids, but also whether you understand t...

Inscribed Solids

2007-11-29 00:00:00

An inscribed solid is a solid placed inside another solid, with the edges of the two solids touching. The figures below are, from left ...

Solids Produced by Rotating Polygons

2007-11-29 00:00:00

Another type of Math IC question that you may come across involves a solid produced by the rotation of a polygon. The best way to expla...

Key Formulas of Solid Geometry

2007-11-29 00:00:00

Length of a Diagonal of a Cubed = = s where s is the length of one edge of the cube. Length of a Diagonal of a Rectangular Solidd ...

Coordinate Geometry

2007-12-19 00:00:00

Coordinate geometry questions make up about 10 percent of the Math IC test. Many of the basic concepts in this chapter may be familiar ...

The Coordinate Plane

2007-12-19 00:00:00

The coordinate plane is a plane determined by two perpendicular lines, the x-axis and the y-axis. The x-axis is the horizontal axis, an...

Lines and Distance

2007-12-19 00:00:00

Lines and distance are fundamental to coordinate geometry, not to mention to the Math IC test. Even the most complicated coordinate geo...

Lines

2007-12-19 00:00:00

Lines are nothing more than an infinite set of points arrayed in a straight formation, but there are a number of ways to analyze them. ...

Graphing Linear Inequalities

2007-12-19 00:00:00

The graph of an inequality is a graph of a region rather than a simple graph of a line. An inequality is actually the graph of all the ...

Other Important Graphs and Equations

2007-12-19 00:00:00

In addition to the graphs and equations of lines, the Math IC will test your understanding of the graphs and equations of parabolas and...

Coordinate Space

2007-12-19 00:00:00

When we add another dimension to the coordinate plane, creating a coordinate space, a new axis must be introduced. Meet the z-axis: ...

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