Types of Triangles
Types of Angles
Types of lines
Name That Triangle
Polygon Review
100
A triangle that has all sides of different lengths
scalene triangle
100
An angle that measures less than 90 degrees.
an acute angle.
100
Lines that meet or cross are called _______. a. intersecting lines b. parallel lines c. polygons
a. intersecting lines
100
A triangle that has sides lengths of 8 inches, 8 inches, and 8 inches.
equilateral
100
This closed figure has 4 equal sides.
square
200
A triangle with two sides of the same length and one side of a different length
an isosceles triangle
200
An angle that measures 180 degrees.
a straight angle
200
Lines that are side by side and never meet are called ___.
parallel lines
200
A triangle that has side lengths of 8 cm, 6 cm, and 7 cm.
scalene triangle
200
A figure with six sides.
hexagon
300
A triangle that has three equal sides.
equilateral triangle
300
An angle that measures exactly 90 degrees.
a right angle
300
A _______ continues forever in both directions.
line
300
A triangle that has side lengths of 5 cm, 3 cm, and 5 cm.
isosceles triangle
300
This figure has five sides.
pentagon
400
A triangle that has one angle measuring more than 90 degrees and two angles that each measure less than 90 degrees.
an obtuse triangle
400
An angle that measures more than 90 degrees but less than 180 degrees.
an obtuse angle
400
A pair of lines extended forever but they will never intersect.
parallel lines
400
A triangle that has side lengths of 9 inches, 9 inches, and 7 inches.
isosceles triangle
400
The figure has 8 sides.
octagon
500
A triangle that has side lengths of 7 inches, 5 inches, and 3 inches.
a scalene triangle
500
A point where two rays meet forming an angle.
a vertex
500
Lines that intersect to form right angles
perpendicular lines
500
A triangle that has one right angle.
right triangle
500
This figure has 10 sides.
decagon
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