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Chapter 7 (7th grade

Geometric Figures

QuestionAnswer
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
Created by: 757677298
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