l Rectangles and Parallelograms Calculator

Enter 2 values below

<-- Length
<-- Width
<-- Area
<-- Perimeter
  

A rectangle has length x width of 5 x 4

Calculate the perimeter and area

Calculate Area (A):

A = l x w
where l = length and w = width

Plug in l = 5 and w = 4

A = 5 x 4

A = 20

Calculate Perimeter (P):

P = 2(l + w)
where l = length and w = width

Plug in l = 5 and w = 4

P = 2 * (5 + 4)

P = 2 * 9

P = 18

Calculate diagonal length

Diagonal = √l2 + w2
where l = length and w = width

Plug in l = 5 and w = 4

Diagonal = √52 + 42

Diagonal = √25 + 16

Diagonal = √41

Diagonal = 6.4031242374328

Calculate the circumradius R:

R  =  l2 + w2
  2

R  =  52 + 42
  2

R  =  25 + 16
  2

R  =  41
  2

R  =  6.4031242374328
  2

R = 3.2015621187164

r  =  20
  9

Calculate the inradius r:

r  =  lw
  l + w

r  =  (5)(4)
  5 + 4

r  =  20
  9

r = 2.2222222222222

Other Properties:

Faces = 1

Edges = 4

Vertices = 4

Final Answers


l = 5
w = 4
A = 20
P = 18
Diagonal = 6.4031242374328
R = 3.2015621187164
r = 2.2222222222222
Faces = 1
Edges = 4
Vertices = 4