triangles,squares,pythagorean theorem
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| perfect square | rational numbers whose square roots are whole numbers
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| square root | one of the two factors of a number
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| radical sign | the symbol used to indicate a non negative square root
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| real numbers | the set of rational numbers together with the set of irrational numbers
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| irrational numbers | a number that cannot be expressed as a over b where a and b are intergers and b does not equal zero
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| point | a specific location in space with no size or shape
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| ray | a part of a line that extends indefinitely in one direction
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| line | a never ending straight path
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| angle | two rays with a common end point
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| vertex | the common end point of the rays froming an angle
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| sides | two rays that make up an angle
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| degree | the most common unit of measure for angles
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| protractor | an instrument used to measure angles
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| acute angle | an angle that measures less than 90 degrees
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| right angle | an angle that measures 90 degrees
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| obtuse angle | an angle with the measure greater than 90 degrees
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| straight angle | an angle with a measure equal to 180 degrees
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| line segment | part of a line containing two end points and all points between them
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| triangle | a polygon having three sides
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| acute triangle | a triangle that all angles are less than 90 degrees
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| obtuse triangle | a triangle with one angle over 90 degrees
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| right triangle | a triangle with one 90 degree angle
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| congruent | line segments that have the same length, or angles that have the same measure
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| scalene triangle | a triangle with no congruent sides
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| isosceles triangle | a triangle that has at least two congruent sides
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| equilateral triangle | a triangle with all sides congruent
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| legs | the sides that are adjacent to the right angle of a right triangle
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| hypotenuse | the side opposite the right angle in a right triangle
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| pythagoream theorem | if a triangle is a right triangle, then the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs
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Created by:
brennaca
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