Perimeter, Area and Volume
Perimeter, Area, Surface Area and Volume | Le périmètre, l’aire, l’aire totale de la surface et le volume
The perimeter of a shape is the length of the distance around a shape or the boundary of a shape. The perimeter of a polygon is the sum of the lengths of all its sides. The formulae to calculate the perimeter (P) | le périmètre (P) are:
Geometric Figure | La figure géométrique
Square | Un carré
Perimeter (P)
P = 4s
s = length of side
Le périmètre (P)
P = 4c
c = longueur du côté
Rectangle | Un rectangle
Perimeter (P)
P = ℓ + ℓ + w + w
or
P = 2(ℓ + w)
ℓ = length
w = width
Le périmètre (P)
P = L + L + ℓ + ℓ
ou
P = 2(L + ℓ)
L = hauteur
ℓ = largeur
Trapezoid | Un trapèze
Perimeter (P)
P = a + b + c + d
a = length of side a
b = length of side b
c = length of side c
d = length of side d
Le périmètre (P)
P = a + b + c + d
a = longueur du côté a
b = longueur du côté b
c = longueur du côté c
d = longueur du côté d
Parallelogram | Un parallélogramme
Perimeter (P)
P = b + b + c + c
or
P = 2(b + c)
b = length of side b
c = length of side c
Le périmètre (P)
P = b + b + c + c
ou
P = 2(b + c)
b = longueur du côté b
c = longueur du côté c
Triangle | Un triangle
Perimeter (P)
P = a + b + c
a = length of side a
b = length of side b
c = length of side c
Le périmètre (P)
P = a + b + c
a = longueur du côté a
b = longueur du côté b
c = longueur du côté c
Circle | Un cercle
Perimeter (P)
C = 2πr
or
C = πd
C = circumference
π = pi (3.14159)
r = radius
d = diameter
Le périmètre (P)
C = 2πr
ou
C = πd
C = circonférence
π = pi (3.14159)
r = rayon
d = diamètre
Regular Polygon | Un polygone régulier
Perimeter (P)
P = ns
n = number of sides
s = length of side
Le périmètre (P)
P = nc
n = nombre de côtés
c = longueur du côté
Irregular Polygon | Un polygone irrégulier
Perimeter (P)
P = a + b + c + d + e + f + g + i
Perimeter = the distance around the geometric figure
Le périmètre (P)
P = a + b + c + d + e + f + g + i
Périmètre = la longueur du contour d’une figure géométrique
The area is the amount of surface a two-dimensional shape covers. It is measured in square units. The formulae to calculate the area (A) | l’aire (A) are:
Square | Un carré
Area (A)
A = s2
s = length of side
L’aire (A)
A = c2
c = longueur du côté
Rectangle | Un rectangle
Area (A)
A = ℓw
ℓ = length
w = width
L’aire (A)
A = Lℓ
L = hauteur
ℓ = largeur
Trapezoid | Un trapèze
Area (A)
A = | (a + b)h |
2 |
or
A = | 1 | (a + b)h |
2 |
a = length of side a
b = length of side b
h = height
L’aire (A)
A = | (a + b)h |
2 |
ou
A = | 1 | (a + b)h |
2 |
a = longueur du côté a
b = longueur du côté b
h = hauteur
Parallelogram | Un parallélogramme
Area (A)
A = bh
b = length of base
h = height
L’aire (A)
A = bh
b = base
h = hauteur
Triangle | Un triangle
Area (A)
A = | bh |
2 |
or
A = | 1 | bh |
2 |
b = length of base
h = height
L’aire (A)
A = | bh |
2 |
ou
A = | 1 | bh |
2 |
b = base
h = hauteur
Rhombus | Un losange
Area (A)
A = | d1d2 |
2 |
or
A = | 1 | d1d2 |
2 |
d1 =length of a diagonal
d2 = length of the other diagonal
L’aire (A)
A = | d1d2 |
2 |
ou
A = | 1 | d1d2 |
2 |
D = grande diagonale
d = petite diagonale
Circle | Un cercle
Area (A)
A = πr2
π = pi (3.14159)
r = radius
L’aire (A)
A = πr2
π = pi (3.14159)
r = rayon
The surface area is the total area of the surface of a tree-dimensional object.
The formulae to calculate the surface area (Atotal) | l’aire totale de la surface (Atotale) are:
Cube | Un cube
Surface Area (A)
A = 6s2
s = length of edge
L’aire totale de la surface (A)
A = 6a2
a = longueur de l’arête
Rectangular Prism | Un prisme droit à base rectangulaire
Surface Area (A)
A = 2(wh + ℓw + ℓh)
or
A = 2wh + 2ℓw + 2ℓh
ℓ = length
h = height
w = width
L’aire totale de la surface (A)
A = 2(Lh + ℓL + hℓ)
ou
A = 2Lh + 2ℓL + 2hℓ
L = longueur
ℓ = largeur
h = hauteur
Cylinder | Un cylinder
Surface Area (A)
Abase = πr2
Alateral surface = 2πrh
Atotal =
2Abase + Alateral surface
= 2πr2 + 2πrh
π = pi (3.14159)
r = radius
h = height
L’aire totale de la surface (A)
Abase = πr2
Asurface latérale = 2πrh
Atotale =
2Abase + Asurface latérale
= 2πr2 + 2πrh
π = pi (3.14159)
r = rayon
h = hauteur
Regular Square Based Pyramid | Une pyramide à base carrée
Surface Area (A)
Atriangle = | 1 | bs |
2 |
Abase = b2
Atotal = 4Atriangle + Abase
= 2bs + b2
b = length of base edge
s = slant height
L’aire totale de la surface (A)
Atriangle = | bℓ |
2 |
Abase = b2
Atotal = 4Atriangle + Abase
= 2bs + b2
b = longueur de l’arête de base
ℓ = longueur de l’apothème
Sphere | Une sphère
Surface Area (A)
A = 4πr2
π = pi (3.14159)
r = radius
L’aire totale de la surface (A)
A = 4πr2
π = pi (3.14159)
r = rayon
Cone | Un cône
Surface Area (A)
Alateral surface = πrs
2base = πr2
Atotal =
Alateral surface + Abase
= πrs + πr2
π = pi (3.14159)
r = radius
s = slant height
L’aire totale de la surface (A)
Asurface latérale = πrs
2base = πr2
Atotale =
Asurface latérale + Abase
= πrs + πr2
π = pi (3.14159)
r = rayon
s = longueur de l’apothème
Triangular prism | Un prisme à base triangulaire
Surface Area (A)
Abase = | 1 | bℓ |
2 |
Arectangles = ah + bh + ch
Atotal =
2Abase + Arectangles
= bℓ + ah + bh + ch
a = length of edge a
b = length of base edge
c = length of edge c
ℓ = triangle altitude
h = height of prism
L’aire totale de la surface (A)
Abase = | bℓ | |
2 |
Arectangles = ah + bh + ch
Atotal =
2Abase + Arectangles
= bℓ + ah + bh + ch
a = longueur de l’arête a
b = longueur de l’arête de base
c = longueur de l’arête c
ℓ = hauteur du triangle
h = hauteur du prisme
Cube | Un cube
Volume (V)
V = s3
s = length of edge
Le volume (V)
V = a3
a = longueur de l’arête
Rectangular Prism | Un prisme droit à base rectangulaire
Volume (V)
V = (Abase)(height)
V = ℓwh
ℓ = length
h = height
w = width
Le volume (V)
V = Abase x hauteur
V = Lℓh
L = longueur
ℓ = largeur
h = hauteur
Cylinder | Un cylinder
Volume (V)
V = (Abase )(height)
V = πr2h
π = pi (3.14159)
r = radius
h = height
Le volume (V)
V = Abase x hauteur
V = πr2h
π = pi (3.14159)
r = rayon
h = hauteur
Regular Square Based Pyramid | Une pyramide à base carrée
Volume (V)
V = | (Abase)(height) |
3 |
or
V = | 1 | b2h |
3 |
or
V = | b2h |
3 |
b = length of base edge
h = height
Le volume (V)
V = | Abase x hauteur |
3 |
ou
V = | b2h |
3 |
ou
V = | 1 | b2h |
3 |
b = longueur de l’arête de base
h = hauteur
Sphere | Une sphère
Volume (V)
V = | 4 | πr3 |
3 |
or
V = | 4πr3 |
3 |
π = pi (3.14159)
r = radius
Le volume (V)
V = | 4πr3 |
3 |
ou
V = | 4 | πr3 |
3 |
π = pi (3.14159)
r = rayon
Cone | Un cône
Volume (V)
V = | (Abase)(height) |
3 |
or
V = | 1 | πr2h |
3 |
or
V = | πr2h |
3 |
π = pi (3.14159)
r = radius
h = height
Le volume (V)
V = | Abasex hauteur |
3 |
ou
V = | 1 | πr2h |
3 |
ou
V = | 1 | πr2h |
3 |
π = pi (3.14159)
r = rayon
a = hauteur
Triangular prism | Un prisme à base triangulaire
Volume (V)
V = | (Abase)(height) |
or
V = | 1 | bℓh |
2 |
or
V = | bℓh |
2 |
b = length of base edge
ℓ = triangle altitude
h = height of prism
Le volume (V)
V = | Abasex hauteur |
ou
V = | bℓh |
2 |
ou
V = | 1 | bℓh |
2 |
b = longueur de l’arête de base
ℓ = hauteur du triangle
h = hauteur du prisme