Geometry Flashcards
(10 cards)
What does spatial reasoning usually require?
Drawing a diagram to visualize relationships.
Area of a diamond formed by connecting midpoints of a 4 × 4 square?
8 in² (half the square).
Name the five basic polygons by side count.
Triangle (3), Quadrilateral (4), Pentagon (5), Hexagon (6), Octagon (8).
What property makes a square a special rhombus?
All four angles are 90°.
List five main quadrilaterals.
Parallelogram, Rectangle, Rhombus, Square, Trapezoid.
How many faces, edges, vertices does a cube have?
6 faces, 12 edges, 8 vertices.
Purpose of a straightedge vs. a compass?
Straightedge draws lines; compass draws arcs/circles.
Composing vs. decomposing figures—why useful?
Makes complex area/volume calculations simpler by recombining known shapes.
Sign pairs for the four quadrants?
I (+,+) II (–,+) III (–,–) IV (+,–)
Steps to plot an ordered pair (x,y).
1 move on x-axis, 2 move on y-axis, 3 mark point.