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Sagot :
Answer:
Perimeter formula
○ Circle 2 × pi × radius
□ Square 4 × side
⎕ Rectangle 2 × (length + width)
▱ Parallelogram 2 × (side1 + side2)
△ Triangle side1 + side2 + side3
⬠ Regular n-polygon n × side
⏢ Trapezoid height × (base1 + base2) / 2
⏢ Trapezoid base1 + base2 + height × [csc(theta1) + csc(theta2)]
⬭ Ellipse 4 × radius1 × E(k,pi/2)
E(k,pi/2) is the complete elliptic integral of the second kind
k = (1/radius1) × sqrt(radius12 - radius22)
Step-by-step explanation:
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Answer:
Area Formulas :
Area of Rectangle
Area = l × w l = length
w = width
Area of Square,
Area = a2 ,
a = sides of the square
Area of a Triangle Area = 1/2 b×h b = base
h = height
Area of a Circle ,
Area = πr2
, r = radius of the circle
Area of a Trapezoid Area = 1/2 (a + b)h a =base 1
b = base 2
h = vertical height
Area of Ellipse ,
Area = πab ,
a = radius of the major axis
b = radius of the minor axis
Step-by-step explanation:
perimeter formula:
Parallelogram 2(Base + Height)
Triangle
a + b + c a,
b and c being the side lengths
Rectangle 2(Length + Width)
Square 4a a =Length of a side
Trapezoid a +b+c+d a, b, c, d being the sides of the trapezoid
Kite 2a + 2b a = Length of the first pair of equal sides
b = Length of the second pair of equal sides
Rhombus 4 x a a = Length of a side
Hexagon 6 x a a = Length of a side
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