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23 Cards in this Set
- Front
- Back
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An angle that is less that 90º is called _________ |
an acute angle |
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An angle that is exactly 90º is called _________ |
a right angle |
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An angle that is bigger than a right angle but smaller than a straight angle is called ________ |
an obtuse angle |
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An angle that measures 180º is called ______ |
a straight angle |
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An angle that is larger than a straight angle is called ________________ |
a reflex angle |
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estimate the measure of this angle: |
10º |
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what continues straight in both directions forever? |
a line |
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what continues in one direction forever |
a ray |
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a chunk or part of a line, that has a beginning and an end |
line segment |
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this word means to meet or cross |
intersect |
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these are formed when rays, lines, or line segments intersect with each other |
angles |
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this is named by just one letter |
a point |
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estimate the measure of this angle |
45º |
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estimate the measure of this angle |
135º |
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estimate the measure of this angle |
100º |
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the symbol for a ray |
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the symbol for a point |
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the symbol for a line |
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pronounced: "line AB" |
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pronounced: "ray AB" |
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pronounced: "line segment AB" |
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could be named ∠ABC |
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could be named ∠ACB |
