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a school blackboard with quadrilateral types
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JPG 300 DPI
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Author:
dreamstime
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buy for Personal Use & Commercial
File Type:
JPG
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blackboard
board
chalk
chalkboard
class
college
concept
crayon
design
education
famous
figure
frame
geometric
geometry
graphic
green
handwriting
highschool
icon
illustration
knowledge
learning
math
mathematical
mathematics
painted
parallelogram
quadrilateral
rectangle
research
rhombus
scheme
school
science
scientific
scribble
shape
sketch
square
study
studying
symbol
teach
trapezium
trapezoid
triangle
trigonometry
type
university
vector
white
wooden