Question

Preface on area and perimeter of plane figures

Answer 1

Answer:

Figure Formula Nomenclature

Triangle

AreaPerim Triangle.png Perimeter:

P=a+b+c

Area:

A=12bh

a,b,c:sides

b:base

h:height

Square

AreaPerim Square.png Perimeter:

P=4a

Area:

A=a2

a:side

Rectangle

AreaPerim Rectangle.png Perimeter:

P=2b+2h

Area:

A=bh

b:base

h:height

Circle

AreaPerim Circle.png Perimeter:

P=2πr

Area:

A=πr2

r:radius