Angles
Points, Lines, Segments, and Rays
Vocabulary
Triangles, Quadrilaterals, and other Polygons
Miscellaneous
100
This kind of angle measures less than 180 degrees but more than 90 degrees.
What is an obtuse angle?
100
A flat surface that extends in all directions.
What is a plane?
100
A shape with 4 right angles and sides that are all the same length.
What is a square?
100
True or false? In any triangle two sides added together must be larger than the third side.
True
100
Find the midpoint of the line segments connecting these pairs of points. (0,4) and (4,10).
(2,7)
200
What are two lines that intersect and form a right angle called?
What is perpendicular?
200
It starts at a point and goes indefinitely in one direction.
What is a ray?
200
This is part of a line with two endpoints.
What is a segment?
200
The Department of Defense in Washington, DC, is housed in a building that is this shape.
What is a pentagon?
200
Find the distance between the pairs of points. (2,3) and(5,7)
d = 5
300
An angle whose measure is greater than 180 degrees, but less than 360 degrees.
What is reflex?
300
Mark said that a line is part of a line segment. Carol said a line segment is part of a line. Who is correct? Explain
Carol is correct. A line segment has endpoints, so it is part of a line.
300
Polygon is ____ if the line segment connecting any two points in the polygonal region lies entirely within the region.
What is convex?
300
A quadrilateral with both pairs of opposite parallel sides and a pair of acute angles and a pair of obtuse angles.
What is a parallelogram?
300
A triangle has an angle measurement of 50' and 45'. What is the missing angle measurement?
What is 85'?
400
Two angles with a sum of 180 degrees
What is a supplementary?
400
Points that lie on the same line.
What is Collinear?
400
A polygon with seven sides is called a...
What is a heptagon?
400
Defined as a quadrilateral in which two pairs of adjacent sides are congruent.
What is a kite?
400
A parallelogram has an angle measuring 95'. What are the other angle measurements?
What is 95',85' and 85'?
500
The sum of two complementary angles is how many degrees
What is 90 degrees?
500
If three or more lines intersect at a single point (that is,have a point in common).
What are concurrent lines?
500
Define an equilateral triangle, a scalene triangle, and an isosceles triangle.
Equilateral = all 3 sides are the same (equal) lengths Scalene = no sides are the same length Isosceles = at least two sides are the same length
500
Is it possible for a triangle to be both an obtuse triangle AND a scalene triangle? Explain whether it is possible.
Yes. If a triangle has an obtuse angle in it AND its sides are three different lengths, then it is possible.
500
If two lines are _____, then their slopes are the negative reciprocal of each other.
What is perpendicular?
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