Enter 2 values below
A rectangle has length x width of 4 x 3
Calculate the perimeter and area
Calculate Area (A):
A = l x w
where l = length and w = width
Plug in l = 4 and w = 3
A = 4 x 3
A = 12
Calculate Perimeter (P):
P = 2(l + w)
where l = length and w = width
Plug in l = 4 and w = 3
P = 2 * (4 + 3)
P = 2 * 7
P = 14
Calculate diagonal length
Diagonal = √l2 + w2
where l = length and w = width
Plug in l = 4 and w = 3
Diagonal = √42 + 32
Diagonal = √16 + 9
Diagonal = √25
Diagonal = 5
Calculate the circumradius R:
| R = | √l2 + w2 |
| 2 |
| R = | √42 + 32 |
| 2 |
| R = | √16 + 9 |
| 2 |
| R = | √25 |
| 2 |
| R = | 5 |
| 2 |
R = 2.5
| r = | 12 |
| 7 |
Calculate the inradius r:
| r = | lw |
| l + w |
| r = | (4)(3) |
| 4 + 3 |
| r = | 12 |
| 7 |
r = 1.7142857142857
Other Properties:
Faces = 1
Edges = 4
Vertices = 4
Final Answers
l = 4
w = 3
A = 12
P = 14
Diagonal = 5
R = 2.5
r = 1.7142857142857
Faces = 1
Edges = 4
Vertices = 4
w = 3
A = 12
P = 14
Diagonal = 5
R = 2.5
r = 1.7142857142857
Faces = 1
Edges = 4
Vertices = 4
