Section 1

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perpendicular lines

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Last updated

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Date created

Mar 1, 2020

Cards (35)

Section 1

(35 cards)

perpendicular lines

Front

Two lines that intersect to form right angles

Back

point

Front

a location

Back

polygons

Front

A closed shape formed by line segments

Back

straight angle

Front

an angle that measures 180 degrees

Back

circle

Front

A round shape that has no beginning or end

Back

quadrilateral

Front

A four-sided polygon.

Back

intersecting lines

Front

lines that cross at one point

Back

diameter

Front

The distance across the circle through the center

Back

rhombus

Front

a parallelogram with 4 congruent sides

Back

square

Front

A quadrilateral with 4 sides that are equal and has all 90 degree angles

Back

congruent polygons

Front

having the same measurement of angles, the same sides, the same shape

Back

right angle

Front

90 degrees

Back

equilateral triangle

Front

A triangle with three congruent sides

Back

pentagon

Front

a polygon with 5 sides

Back

acute triangle

Front

A triangle with 3 acute angles

Back

isosceles triangle

Front

A triangle that has 2 equal sides.

Back

radius

Front

The distance from the center of a circle to any point on the circle

Back

vertex

Front

A point where two or more straight lines meet.

Back

nonagon

Front

polygon with 9 sides

Back

scalene triangle

Front

a triangle with no congruent sides

Back

line

Front

extends in both directions with no end

Back

decagon

Front

10 sided polygon

Back

similar polygons

Front

Polygons that have the same shape, but not necessarily the same size. Corresponding sides of similar polygons are proportional.

Back

hexagon

Front

a polygon with 6 sides

Back

parallelogram

Front

A quadrilateral with two pairs of parallel sides

Back

octagon

Front

a polygon with 8 sides

Back

heptagon

Front

polygon with 7 sides

Back

trapezoid

Front

A quadrilateral with exactly one pair of parallel sides

Back

ray

Front

a part of a line that starts at one endpoint and extends forever

Back

line segment

Front

A part of a line with two endpoints

Back

Obtuse triangle

Front

a triangle with one obtuse angle

Back

chord

Front

A segment whose endpoints lie on a circle

Back

rectangle

Front

A quadrilateral with four right angles

Back

parallel lines

Front

lines that never intersect

Back

angle

Front

A figure formed by two rays with a common endpoint

Back