rectangle

right-angle

Ninety-degree intersection

• perpendicularAt right angles
• verticesCorner points of shapes
• diagonalSlanting line or path

sides · corners · edges · perimeter · area · length · width · dimensions · congruence · bisect

square

Rhombus with right angles

• oblongElongated in one direction
• rhombusEquilateral parallelogram
• trapezoidPolygon with parallel pair

kite · diamond · polygon · hexagon · octagon · pentagon · triangle · cuboid · parallelepiped · trapezium

bilateral

Involving two parties

• reflectionReturned light or thought
• mirrorReflective viewing surface
• axisRotation reference line

balance · proportion · alignment · congruence · regularity · uniformity · parallel · correspondence · flip · rotational

blueprint

Detailed technical drawing

• layoutSpatial arrangement of elements
• gridFramework of intersecting lines
• compositionArranged elements forming whole

frame · border · panel · tile · mosaic · pattern · module · template · placeholder · wireframe

screen

Display or barrier

• windowGlass-fitted wall opening
• doorHinged room barrier
• tableHorizontal furniture surface

book · canvas · billboard · sign · envelope · brick · tile · flag · field · court

• geometryangles, circles, angle, shapes, lines
• geometry termscircle, line, side, square, triangle
• geometric shapessphere, triangle, square, cone, cylinder
• polygonspolygon, triangle, pentagon, hexagon, heptagon
• shapescircle, square, triangle, oval, hexagon
• flowchartsflowchart, arrow, symbol, connector, start