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Vocabulary for Math

Vocabulary 4th grade students need to know!

Parallel Two lines that are the same distance apart and never touch.
Perpendicular Two intersecting lines that form a right angle.
Perimeter Distance around a figure
Area The number of square units needed to cover a surface. L x W
Congruent Same size, same shape
Rounding Replacing an exact number with another number that tells about how much.
Triangle 3 sides
Quadrilateral 4 sides
Pentagon 5 sides
Hexagon 6 sides
Octagon 8 sides
Ellipse Oval
Rhombus Diamond
Created by: pmthompson