|
Area and Perimeter of Basic Plane Figures
| |
Perimeter |
Area |
Variables |
| Square |
P=4s
|
A=s²
|
s: sides
|
| Trapezoid |
P = s1+s2+s3+s4
|
A=½h(b1+b2)
|
s: sides
h: height
b1: one base
b2: other base
|
| Parallelogram |
P = 2l + 2w
|
A=bh
|
l: length
w: width
b: base
h: height
|
| Rectangle |
P = 2l + 2w
|
A=lw
|
l: length
w: width
|
| Rhombus |
P=4s
|
A=bh
|
s: sides
b: base
h: height
|
| Triangle |
P = s1+s2+s3
|
A=½bh
|
s: sides
b: base
h: height
|
| Circle |
C=πd
|
A=πr2
|
d:diameter
r: radius
|
|
