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Mathematics Geometry Theory
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Test on all the Geometry Theory you will need to know.
Terms in this set (21)
Acute Angle
an angle that measures less than 90 degrees
Reflex Angle
An angle greater than 180 degrees (but less than 360)
Obtuse Angle
An angle that measures more than 90 degrees but less than 180 degrees
Revolution Angle (Angles around a point)
An angle that is exactly 360 degrees
Straight Angle (Straight Line)
An angle that measures 180 degrees
Right Angle
An angle that measures 90 degrees
Complementary Angle
Two angles that add up to 90 degrees
Supplementary Angle
Two angles that add up to 180 degrees
Vertically Opposite Angles
Vertically opposite angles are equal
Parrallel Lines
lines that never intersect
Corresponding Angles
the angles that occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal. (Think of the 'F' rule.)
Alternate Angles
angles on opposite sides of the transversal and inside the parallel lines (think of the "Z" rule) are equal in size.
Co-interior Angles
Angles that add up to 180 degrees. They make a U shape. (Think of the 'U' rule.)
Scalene Triangle
A triangle with no equal sides
Equilateral Triangle
A triangle with all sides of equal length
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Verified questions
GEOMETRY
The highway department has a supply of road salt for use in the coming winter. The salt forms a cone that has a height of 10 feet and a circular base with a diameter of 12 feet. How many cubic feet of salt does the department have stored? Round to the nearest foot.
GEOMETRY
Find the number of combinations. In how many ways can 11 contestants for an award be narrowed down to 3 finalists?
GEOMETRY
Emaan says every kite is composed of 4 right triangles. ls he correct? Explain.
GEOMETRY
A road has a grade of 28.4%.This means that the road rises 28.4 ft over a horizontal distance of 100 ft. What angle does the hill make with a horizontal line? Round to the nearest degree.
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