Circle Formulas

Information:

• O = is the middle indicate of the circle
• OA = OB is the radius of the circle
• AB is the diameter
• The plication trouble of the CD is a round down arc
• The CD is a round down cord
• POQ archive is a circle juring
• The CSD archive is a circle tembereng
• OS is apothem

Formula of Circle Area

A = π r²

Information
A = Area
r = Jari-jari

Formula of circumference Circle

C = 2πr

Information:
C = Circumference Circle
r = radius

Length of Circular Arc Formula

Arc length = a / 360 10 two phi r

Information:
a = large corner of the middle of the circle
r = radius

Formula of juring Area Circle

Juring Area = a/360 10 πr²

Information:
a = Large corner of middle of circle
r = radius

Formula of Circumference Juring Circle

Circumference Juring = length of arc + 2r

Information:
r = Radius

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Area As Well As Circumference Formula Of Trapezoidal

Trapezoid at that topographic point are three kinds, including:
1. Trapezoid Any
An arbitrary trapezoid has solely parallel sides.

2. Trapezium Equal Legs

Characteristics:

• Has ane twosome of parallel sides.
• Has ane side pairs of the same length (trapezoidal human foot AD = BC).
• Has 2 pairs of angles equal ∠A = ∠B = x as well as ∠D = ∠C.

3. Trapezoidal Bracket

Trapezoidal bracket is a trapezoid whose 2 corners are elbow.

Formula of Trapezoidal Area

Trapezoidal Area = 1/2 (number of parallel sides) x height

Example Question of Trapezoidal Area

Please possess upwards one's hear the trapezoidal surface area amongst parallel sides of 12cm and 18cm each as well as 10cm in height!

Answer:
Number of parallel sides = 12cm + 18cm = 30cm
Height = 10cm

Trapezoidal Area = 1/2 (number of parallel sides) x height
Trapezoidal Area = 1/2 (30cm) x 10cm
Trapezoidal Area = 1/2 x 300cm²
Trapezoidal Area = 150cm²

So the trapezoidal surface area is 150cm²

Formula of Circumference Trapezoidal

Circumference Trapezoidal = The length of the 4 sides

Example of Circumference Trapezoidal

What is the trapezoidal circumference below!

Answer:
AB = 15cm
BC = 10cm
CD = 27cm
AD = 10cm

Circumference Trapezoidal = The length of the 4 sides
Circumference Trapezoidal = AB + BC + CD + AD
Circumference Trapezoidal = 15cm + 10cm + 27cm + 10cm
Circumference Trapezoidal = 52cm

So the circumference of the trapezoid is 52cm.

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Area Too Circumference Formula Of Kite

Kite properties

The next are the properties of the kite, including:

• The side past times side sides are the same length AD = AB together with DC = BC
• Both diagonals intersect a perpendicular cross
• DO = OB together with ∠ADC = ∠ABC

Formula of Kite Area

Kite Area = 1/2 10 air-conditioning 10 BD

Information:
For air-conditioning together with BD tin live on seen on the inwards a higher house kite drawing.

Example Question of Kite Area

What is the expanse of the kite below?

Answer:
AC = 5cm + 1cm = 6cm
BD = 2cm + 2cm = 4cm

Kite Area = 1/2 10 air-conditioning 10 BD
Kite Area = 1/2 10 6cm 10 4cm
Kite Area = 1/2 10 24cm²
Kite Area = 12cm²

So the expanse of the kite inwards the ikon inwards a higher house is 12cm²

Formula of Circumference Kite

C = 2x + 2y

Information:
C = Kelilng kite
x together with y tin live on seen inwards the inwards a higher house kite drawing

Example Question of Circumference Kite

What is the circumference of the kite below?

Answer:
x = 2cm
y = 5cm

C = 2x + 2y
C = 2(2cm) + 2(5cm)
C = 4cm + 7cm
C = 11cm

So the circumference of the kite is 11cm.

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Area As Well As Circumference Formula Of Rhombus

Rhombus properties

So the properties of rhomb are equally follows:

• The 4 sides are the same length
• The contrary corners are equally large ∠D = ∠B ∠C = ∠A
• It has 2 diagonals that portion 2 equal lengths
• The 2 diagonals intersect each other perpendicularly.

Formula of Rhombus Area

A = 1/2 10 air conditioning 10 BD

Information:
A = Area

Example Question of Rhombus Area

What is the expanse of rhomb below ?

Answer:
AC = 2 + 2 = 4
BD = one + one = 2

A = 1/2 10 air conditioning 10 BD
A = 1/2 10 4 10 2
A = 1/2 10 8
A = 4

So the width of the rhomb is 4.

Formula of Circumference Rhombus

C = 4s

Information:
C = Circumference Rhombus
s = side

Example Question of Circumference Rhombus

What is the circumference of a rhomb that has 2cm sides?

Answer
s = 2cm

C = 4s
C = 4(2cm)
C = 8cm

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Area Together With Circumference Formula Of Parallelogram

Parallelogram Characteristics

These are the parallelogram characteristics, such as:

• The contrary sides are parallel in addition to the same length
• The contrary corners are equally large ∠D =∠B in addition to ∠C = ∠A
• It has 2 diagonals that part 2 equal lengths. AO = OC in addition to BO = OD

Formula of Parallelogram Area

A = p x t

Information
A = Area
p = Pedestal
h = High

Example Question of Parallelogram Area

What is the expanse of a parallelogram that has a 2cm and 3cm height?

Answer:
p = 2cm
h = 3cm

A = p x t
A = 2cm x 3cm
A = 6cm²

So the expanse of the parallelogram is 6cm²

Formula of Circumference Parallelogram

C = 2(AB + BC)

Information :
C = Circumference

Example Question of Circumference Parallelogram

What is the Circumference of parallelogram below?

Answer:
AB = 3cm
BC = 2cm

C = 2(AB + BC)
C = 2(3cm + 2cm)
C = 2(5cm)
C = 10cm

So the circumference of the parallelogram inward the picture higher upwardly is 10cm.

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Area Too Circumference Formula Of Triangle

Various of Triangles

Here are all sorts of triangles, including:

• Right-angled triangle (one corner 90º)
• The equilateral triangle (both sides are the same length)
• Equilateral triangle (three sides of equal length)
• The pointed triangle (the 3rd triangle is pointed angle, a < 90º)
• Blunt triangle (a triangle inwards which 1 corner is a blunt corner, a > 90º)

Formula of Triangle Area

Information :
A = Tringular Area
p = pedestal
h = height

Example Question of Triangle Area

What is the surface area of a triangle having a 2cm together with 3cm height?

Answer:
p = 2cm
h = 3cm

A = (a x t)/2
A = (2cm x 3cm)/2
A = 6cm²/2
A = 3cm²

So the surface area of a triangle having a base of operations of 2cm and a superlative of 3cm is 3cm².

Formula of Circumference Triangle

C = air conditioning + CB + BA

Information
C = Circumference

Example Question of Circumference Triangle

What is the circumference of the triangle below!

Answer:
AC = 13cm
CB = 13cm
BA = 10cm

C = air conditioning + CB + BA
C = 13cm + 13cm + 10cm
C = 36cm

So The circumference of the triangle inwards a higher house is 36cm.

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Area Together With Circumference Formula Of Rectangle

Rectangular Properties

These are the properties of the rectangle, amidst which are:

• The contrary sides are parallel as well as the same length.
• The 4 correct angles ∠a = ∠b = ∠c = ∠d.
• The 2 diagonals are the same length AC = BD (diagonal).
• It has 2 axes of symmetry.

Formula of Rectangle Area

A = fifty x w

Information:
A = Area
l = long
w = width

Example Question of Rectangle Area

What is the expanse of a rectangle that has a length of 3cm as well as a width of 2cm?

Answer:
l = 3cm
w = 2cm

A = p x l
A = 3cm x 2cm
A = 6cm²

So the expanse of a rectangle that has a length of 3cm as well as a width of 2cm is 6cm²

Formula of Circumference Rectangle

C = 2(P + l)

Information:
C = Circumference
l = Length
w = Width

Example Question of Circumference Rectangle

What is the circumference of a rectangle that has a length of 3cm and an expanse of 2cm?

Answer:
l = 3cm
W = 2cm

C = 2(P + l)
C = 2(3cm + 2cm)
C = 2(5cm)
C = 10cm

So the circumference of a foursquare that has a length of 3cm and a width of 2cm is 10cm.

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