Rectangles and Parallelograms Calculator

A rectangle has length x width of 3 x 5 Calculate the perimeter and area A = l x wwhere l = length and w = width Plug in l = 3 and w = 5 A = 3 x 5 A = 15 P = 2(l + w)where l = length and w =

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Enter 2 values below

A rectangle has length x width of 3 x 5

Calculate the perimeter and area

Calculate Area (A):

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

Plug in l = 3 and w = 5

A = 3 x 5

A = 15

Calculate Perimeter (P):

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

Plug in l = 3 and w = 5

P = 2 * (3 + 5)

P = 2 * 8

P = 16

Calculate diagonal length

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

Plug in l = 3 and w = 5

Diagonal = √32 + 52

Diagonal = √9 + 25

Diagonal = √34

Diagonal = 5.8309518948453

Calculate the circumradius R:
R  =  l2 + w2
  2

R  =  32 + 52
  2

R  =  9 + 25
  2

R  =  34
  2

R  =  5.8309518948453
  2

R = 2.9154759474227

r  =  15
  8

Calculate the inradius r:
r  =  lw
  l + w

r  =  (3)(5)
  3 + 5

r  =  15
  8

r = 1.875

Other Properties:

Faces = 1

Edges = 4

Vertices = 4

Final Answers

l = 3
w = 5
A = 15
P = 16
Diagonal = 5.8309518948453
R = 2.9154759474227
r = 1.875
Faces = 1
Edges = 4
Vertices = 4

You have 1 free calculations remaining


What is the Answer?

l = 3
w = 5
A = 15
P = 16
Diagonal = 5.8309518948453
R = 2.9154759474227
r = 1.875
Faces = 1
Edges = 4
Vertices = 4

How does the Rectangles and Parallelograms Calculator work?

Free Rectangles and Parallelograms Calculator - Solve for Area, Perimeter, length, and width of a rectangle or parallelogram and also calculates the diagonal length as well as the circumradius and inradius.
This calculator has 4 inputs.

What 2 formulas are used for the Rectangles and Parallelograms Calculator?

What 9 concepts are covered in the Rectangles and Parallelograms Calculator?

areaNumber of square units covering the shapecircumradiusa radius of the circle inside which the polygon can be inscribedinradiusa radius of an inscribed circle or spherelengththe measurement or extent of something from end to endparallelogram simple quadrilateral with two pairs of parallel sides.perimeterThe distance around a shape or objectrectanglea quadrilateral with four right anglesrectangles and parallelogramswidththe measurement or extent of something from side to side.

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