l Rectangles and Parallelograms Calculator

Enter 2 values below

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

Answer
l = 20
w = 9
A = 180
P = 58
Diagonal = 21.931712199461
R = 10.965856099731
r = 6.2068965517241
Faces = 1
Edges = 4
Vertices = 4

↓Steps Explained:↓



A rectangle has length x width of 20 x 9

Calculate the perimeter and area

Calculate Area (A):

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

Plug in l = 20 and w = 9

A = 20 x 9

A = 180

Calculate Perimeter (P):

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

Plug in l = 20 and w = 9

P = 2 * (20 + 9)

P = 2 * 29

P = 58

Calculate diagonal length

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

Plug in l = 20 and w = 9

Diagonal = √202 + 92

Diagonal = √400 + 81

Diagonal = √481

Diagonal = 21.931712199461

Calculate the circumradius R:

R  =  √l2 + w2
  2

R  =  √202 + 92
  2

R  =  √400 + 81
  2

R  =  √481
  2

R  =  21.931712199461
  2

R = 10.965856099731

Calculate the inradius r:

r  =  lw
  l + w

r  =  (20)(9)
  20 + 9

r  =  180
  29

r = 6.2068965517241

Other Properties:

Faces = 1

Edges = 4

Vertices = 4

Final Answers

l = 20
w = 9
A = 180
P = 58
Diagonal = 21.931712199461
R = 10.965856099731
r = 6.2068965517241
Faces = 1
Edges = 4
Vertices = 4

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