11 Other formulas that you can solve using the same Inputs

Total Surface Area of a Pyramid
Total Surface Area=Side*(Side+sqrt(Side^2+4*(Height)^2)) GO
Area of a Rhombus when side and diagonals are given
Area=(1/2)*(Diagonal A)*(sqrt(4*Side^2-(Diagonal A)^2)) GO
Lateral Surface Area of a Pyramid
Lateral Surface Area=Side*sqrt(Side^2+4*(Height)^2) GO
Surface Area of a Capsule
Surface Area=2*pi*Radius*(2*Radius+Side) GO
Volume of a Capsule
Volume=pi*(Radius)^2*((4/3)*Radius+Side) GO
Area of a Octagon
Area=2*(1+sqrt(2))*(Side)^2 GO
Volume of a Pyramid
Volume=(1/3)*Side^2*Height GO
Area of a Hexagon
Area=(3/2)*sqrt(3)*Side^2 GO
Base Surface Area of a Pyramid
Base Surface Area=Side^2 GO
Surface Area of a Cube
Surface Area=6*Side^2 GO
Volume of a Cube
Volume=Side^3 GO

11 Other formulas that calculate the same Output

Area of Triangle when semiperimeter is given
Area Of Triangle=sqrt(Semiperimeter Of Triangle *(Semiperimeter Of Triangle -Side A)*(Semiperimeter Of Triangle -Side B)*(Semiperimeter Of Triangle -Side C)) GO
Area of triangle given 3 exradii and inradius
Area Of Triangle=sqrt(Exradius of excircle opposite ∠A*Exradius of excircle opposite ∠B*Exradius of excircle opposite ∠C*Inradius of Triangle) GO
Area of triangle given semiperimeter, one side and its exradius
Area Of Triangle=Exradius of excircle opposite ∠A*(Semiperimeter Of Triangle -Side A) GO
Area of Triangle given 2 angles and third side
Area Of Triangle=(Side A^2*sin(Angle B)*sin(Angle C))/(2*sin(180-Angle B-Angle C)) GO
Area of triangle given 3 points
Area Of Triangle=modulus(1/2*((y1*(x3-x2))+(y2*(x1-x3))+(y3*(x2-x1)))) GO
Area of triangle given circumradius and sides
Area Of Triangle=(Side A*Side B*Side C)/(4*Circumradius of Triangle) GO
Area of triangle given inradius and semiperimeter
Area Of Triangle=Inradius of Triangle*Semiperimeter Of Triangle GO
Area of an isosceles triangle
Area Of Triangle=(sqrt((Side A)^2-((Side B)^2/4)))*(Side B/2) GO
Area of an isosceles triangle when length sides and angle between them are given
Area Of Triangle=(Side A*Side B*sin(Theta))/2 GO
Area of triangle given 2 sides and third angle
Area Of Triangle=Side A*Side B*sin(Angle C)/2 GO
Area of an isosceles right angle triangle
Area Of Triangle=(Side A)^2/2 GO

Area of an equilateral triangle Formula

Area Of Triangle=(sqrt(3)*(Side)^2)/4
More formulas
Perimeter of the isosceles triangle GO
Semiperimeter of an isosceles triangle GO
Area of an isosceles triangle GO
Area of an isosceles triangle when length sides and angle between them are given GO
Area of an isosceles right angle triangle GO
Altitude of an isosceles triangle GO
Heron's formula GO
Perimeter of an isosceles right-angled triangle GO
Angle bisector of an isosceles triangle when equal sides are given GO
Angle bisector of an isosceles triangle when the unequal side is given GO
Median of an isosceles triangle when the unequal side is given GO
Radius of the circumscribed circle of an isosceles triangle GO
Radius of the inscribed circle of an isosceles triangle GO
Semiperimeter of an equilateral triangle GO
Altitude of an equilateral triangle GO
Median of an equilateral triangle GO
Angle bisector of an equilateral triangle GO
Radius of the circumscribed circle of an equilateral triangle GO
Radius of the inscribed circle of an equilateral triangle GO
Ex-radius of an equilateral triangle GO

What is area of an equilateral triangle and how it is calculated ?

The area of a triangle is defined as the total region that is enclosed by the three sides of an equilateral triangle. In an equilateral triangle, all three sides are equal in length. Its area is calculated by the formula A = √3a2 /4 where A is the area of an equilateral triangle and a is the side of an equilateral triangle.

How to Calculate Area of an equilateral triangle?

Area of an equilateral triangle calculator uses Area Of Triangle=(sqrt(3)*(Side)^2)/4 to calculate the Area Of Triangle, Area of an equilateral triangle is defined as the total region that is enclosed by the three sides of an equilateral triangle. Area Of Triangle and is denoted by A symbol.

How to calculate Area of an equilateral triangle using this online calculator? To use this online calculator for Area of an equilateral triangle, enter Side (s) and hit the calculate button. Here is how the Area of an equilateral triangle calculation can be explained with given input values -> 35.07403 = (sqrt(3)*(9)^2)/4.

FAQ

What is Area of an equilateral triangle?
Area of an equilateral triangle is defined as the total region that is enclosed by the three sides of an equilateral triangle and is represented as A=(sqrt(3)*(s)^2)/4 or Area Of Triangle=(sqrt(3)*(Side)^2)/4. The side is an upright or sloping surface of a structure or object that is not the top or bottom and generally not the front or back.
How to calculate Area of an equilateral triangle?
Area of an equilateral triangle is defined as the total region that is enclosed by the three sides of an equilateral triangle is calculated using Area Of Triangle=(sqrt(3)*(Side)^2)/4. To calculate Area of an equilateral triangle, you need Side (s). With our tool, you need to enter the respective value for Side and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Area Of Triangle?
In this formula, Area Of Triangle uses Side. We can use 11 other way(s) to calculate the same, which is/are as follows -
  • Area Of Triangle=sqrt(Semiperimeter Of Triangle *(Semiperimeter Of Triangle -Side A)*(Semiperimeter Of Triangle -Side B)*(Semiperimeter Of Triangle -Side C))
  • Area Of Triangle=(sqrt((Side A)^2-((Side B)^2/4)))*(Side B/2)
  • Area Of Triangle=(Side A*Side B*sin(Theta))/2
  • Area Of Triangle=(Side A)^2/2
  • Area Of Triangle=modulus(1/2*((y1*(x3-x2))+(y2*(x1-x3))+(y3*(x2-x1))))
  • Area Of Triangle=(Side A^2*sin(Angle B)*sin(Angle C))/(2*sin(180-Angle B-Angle C))
  • Area Of Triangle=Side A*Side B*sin(Angle C)/2
  • Area Of Triangle=(Side A*Side B*Side C)/(4*Circumradius of Triangle)
  • Area Of Triangle=Inradius of Triangle*Semiperimeter Of Triangle
  • Area Of Triangle=sqrt(Exradius of excircle opposite ∠A*Exradius of excircle opposite ∠B*Exradius of excircle opposite ∠C*Inradius of Triangle)
  • Area Of Triangle=Exradius of excircle opposite ∠A*(Semiperimeter Of Triangle -Side A)
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