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Chapter 7 (7th grade
Geometric Figures
Question | Answer |
---|---|
Two opposite angles formed by the intersection of two lines. | Vertical Angles |
Angles that have the same measurement | Congruent |
Two angles that share a common vertex, common side, and do not overlap | Adjacent |
Two angles that have a sum of 90 degrees | complementary |
Two angles that have a sum of 180 degrees | Supplementary |
All angles are acute in the triangle | Acute Triangle |
There is 1 right angles in the triangle | Right Triangle |
There is 1 obtuse angle in the triangle | Obtuse Triangles |
Less than 90 degreeAcute angle | Acute angle |
Exactly 90 degreesRight angle | Right angle |
Greater than 90 degreesObtuse angle | Obtuse angle |
A triangle with no congruent sides | Scalene triangle |
A triangle with two congruent sides | Isosceles triangle |
All sides are congruent in the triangle | Equalateral |
Sides with the same length | Congruent sides |
Representation of objects that are too big to draw in actual size | Scale drawing/model |
The ratio that compares the measure of the model to the measure of the actual object | Scale |
A scale written as a ratio with no units in simplest form | Scale factor |
A flat surface that goes on forever in all directions | plane |
Lines that fall on the same plane | coplanar |
Lines that will never intersect | parallel |
Line where two planes intersect | Edge |
Point where 3 or more planes intersect | vertex |
a flat surface | face |
a line segment whose endpoints are vertices that are neither adjacent nor on the same face | Diagnol |
A 3D figure with 2 parallel congruent circular bases connected by a curved surface | Cylander |
A 3D figure with one circular base connected by a curved side to one vertex | Cone |