By Matthew and Abby
Angles and Shapes
Acute angle-An angle whose measure is between 0 degrees and 90 degrees.
Obtuse angle-An angle greater than 90 degrees but less than 180 degrees.
Straight angle-An angle of 180 degrees.
Right Angle-An angle of 90 degrees.
Quadrilateral-A four-sided figure having four straight sides.
Square- A plane figure with four equal straight sides and four right angles.
Rectangle- A plane figure with four straight sides and four right angles.
Rhombus- A 4-sided flat shape with straight sides where all sides have equal length.
Trapezoid- A quadrilateral with only one pair of parallel side.
Parallelogram- A four-sided plane rectilinear figure with opposite sides parallel.
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Small Slide show of Angles & Shapes!!