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The sat skill exam 8

Tham khảo tài liệu 'the sat skill exam 8', ngoại ngữ, anh ngữ phổ thông phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | THE SAT MATH SECTION Geometry Review To begin this section it is helpful to become familiar with the vocabulary used in geometry. The list below defines some of the main geometrical terms. It is followed by an overview of geometrical equations and figures. arc part of a circumference area the space inside a two-dimensional figure bisect cut in two equal parts circumference the distance around a circle chord a line segment that goes through a circle with its endpoint on the circle congruent identical in shape and size. The geometric notation of congruent is . diameter a chord that goes directly through the center of a circle the longest line you can draw in a circle equidistant exactly in the middle hypotenuse the longest leg of a right triangle always opposite the right angle line a straight path that continues infinitely in two directions. The geometric notation for a line is AB. line segment the part of a line between and including two points. The geometric notation for a line segment is PQ. parallel lines in the same plane that will never intersect perimeter the distance around a figure perpendicular two lines that intersect to form 90-degree angles quadrilateral any four-sided figure radius a line from the center of a circle to a point on the circle half of the diameter ray a line with an endpoint that continues infinitely in one direction. The geometric notation for a ray is AB. tangent line a line meeting a smooth curve such as a circle at a single point without cutting across the curve. Note that a line tangent to a circle at point P will always be perpendicular to the radius drawn to point P. volume the space inside a three-dimensional figure 127 THE SAT MATH SECTION Angles An angle is formed by an endpoint or vertex and two A right angle is an angle that measures 90 . A right angle is symbolized by a square at the vertex. Naming Angles There are three ways to name an angle. 1. An angle can be named by the vertex when no other angles share the same vertex .