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a∧2

area of a square

ab

area of a rectangle

bh

area of parallelogram

area of trapezoid

h/2 (b1 + b2)

Circle

in a plane, the set of all points equidistant from a given point

πr1 r2

Area of ellipse

Area of triangle

(1/2) b h

a^3

Volume of a cube

abc

Volume of a rectangular prism

πr^2h

Volume of a cylinder

(1/3)bh

Volume of pyramid

1/3πr^2 h

Volume of a cone

(4/3)πr^3

Volume of a sphere

6a^2

Surface area of a cube

4πr^2

Surface area of Sphere

area

the number of square units needed to cover an area

Base

the bottom face of a geometric figure (the floor)

cube

A solid shape that has: 6 square faces all equal in size, 8 vertices (corners), and 12 equal edges.

cubic unit

a unit for measuring volume (a cube with each side 1 unit long)

face

The flat surface of a 3D shape.

Height

The shortest distance between the base of a geometric figure and its top.

perimeter

The distance around a geometric figure.

Rectangle

a polygon with opposite sides parallel and four right angles

rectangular prism

A solid shape that has: 6 faces (4 rectangles & 2 squares), 8 vertices (corners), and 12 equal edges.

square unit

a unit for measuring area

volume

measures the amount of space taken up by the object.