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U6L1Angles
Terms for Angles and Triangles
Question | Answer |
---|---|
A part of a line between two points on a line. | line segment |
A straight path connecting many points and extending in both directions. | line |
Angle between 0 deg and 90 deg. | acute |
Angles that add to 90 deg. | complementary angles |
Triangle with three 60 deg angles | equilateral |
A triangle with two equal angles | isosceles |
Angle between 90 deg and 180 deg. | obtuse |
Angle equal to 90 deg | right angle |
Triangle with 3 different side lengths | scalene |
Angles adding to 180 deg. | supplementary |
Formed when two rays come together at a common point called a vertex | angle |
A line that starts at one point and continues in a straight path. | ray |
A point where two rays meet | vertex |
Used to measure angles | protractor |
An angle greater than 180 deg. | reflex angle |