Anamika Mittal
Vellore Institute of Technology (VIT), Bhopal
Anamika Mittal has created this Calculator and 50+ more calculators!
Mona Gladys
St Joseph's College (St Joseph's College), Bengaluru
Mona Gladys has verified this Calculator and 400+ more calculators!

11 Other formulas that you can solve using the same Inputs

Volume of a triangular prism when two angles and a side between them are given
Volume=Length*Side A^2*sin(Angle A)*sin(Angle B)/(2*sin(Angle A+Angle B)) GO
Current Value for Alternating Current
Electric Current=Peak Current*sin(Angular Frequency*Time+Angle A) GO
Side a of a triangle
Side A=sqrt((Side B)^2+(Side C)^2-2*Side B*Side C*cos(Angle A)) GO
Fourth angle of quadrilateral when three angles are given
Angle Between Sides=360-(Angle A+Angle B+Angle C) GO
Third angle of a triangle when two angles are given
Angle Between Sides=180-(Angle A+Angle B) GO
Side a of a triangle given side b, angles A and B
Side A=(Side B*sin(Angle A))/sin(Angle B) GO
Peak to Valley Height
Height=Feed/(tan(Angle A)+cot(Angle B)) GO
Work
Work =Force*Displacement*cos(Angle A) GO
Chord Length when radius and angle are given
Chord Length=sin(Angle A/2)*2*Radius GO
Arc Length
Arc Length=2*pi*Radius*(Angle A/360) GO
sin2A given angle A
Sin2A=2*sin(Angle A)*cos(Angle A) GO

8 Other formulas that calculate the same Output

Second angle of kite
Angle B=arccos((((symmetry diagonal-Distance from center to a point)^2)+(Side B^2)-(Diagonal/2)^2)/(2*(symmetry diagonal-Distance from center to a point)*(Side B))) GO
Angle at B of cyclic quadrilateral
Angle B=arccos((Side D^2+Side C^2-Side A^2-Side B^2)/(2*((Side D*Side C)+(Side B*Side A)))) GO
Angle β of antiparallelogram
Angle B=arccos((Side A^2+section 2^2-section 1^2)/(2*Side A*section 2)) GO
Exterior angle of nonagon given sum of all exterior angles of nonagon
Angle B=Sum of Angles/9 GO
Angle second leg of elliptical sector
Angle B=Angle+Angle A GO
Obtuse angle of tri-equilateral trapezoid
Angle B=180-Angle A GO
Acute angle of right kite
Angle B=180-Angle A GO
Base angle of crossed rectangle
Angle B=Angle/2 GO

Base angles B,C of isosceles triangle when vertex angle A is known Formula

Angle B=90-(Angle A/2)
∠B=90-(∠A/2)
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
Angle of isosceles triangle when equal angles are known GO

What is an isosceles triangle?

An isosceles triangle is a triangle having two equal sides and one side different in length. Also , in such a triangle the angles opposite to these equal sides are also equal. This formula is derived using angle sum property of a triangle.

How to Calculate Base angles B,C of isosceles triangle when vertex angle A is known?

Base angles B,C of isosceles triangle when vertex angle A is known calculator uses Angle B=90-(Angle A/2) to calculate the Angle B, The Base angles B,C of isosceles triangle when vertex angle A is known formula is defined as the difference of 90 degrees and half of the vertex angle. Angle B and is denoted by ∠B symbol.

How to calculate Base angles B,C of isosceles triangle when vertex angle A is known using this online calculator? To use this online calculator for Base angles B,C of isosceles triangle when vertex angle A is known, enter Angle A (∠A) and hit the calculate button. Here is how the Base angles B,C of isosceles triangle when vertex angle A is known calculation can be explained with given input values -> 75 = 90-(30/2).

FAQ

What is Base angles B,C of isosceles triangle when vertex angle A is known?
The Base angles B,C of isosceles triangle when vertex angle A is known formula is defined as the difference of 90 degrees and half of the vertex angle and is represented as ∠B=90-(∠A/2) or Angle B=90-(Angle A/2). The angle A is one of the angles of a triangle.
How to calculate Base angles B,C of isosceles triangle when vertex angle A is known?
The Base angles B,C of isosceles triangle when vertex angle A is known formula is defined as the difference of 90 degrees and half of the vertex angle is calculated using Angle B=90-(Angle A/2). To calculate Base angles B,C of isosceles triangle when vertex angle A is known, you need Angle A (∠A). With our tool, you need to enter the respective value for Angle A 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 Angle B?
In this formula, Angle B uses Angle A. We can use 8 other way(s) to calculate the same, which is/are as follows -
  • Angle B=Sum of Angles/9
  • Angle B=arccos((((symmetry diagonal-Distance from center to a point)^2)+(Side B^2)-(Diagonal/2)^2)/(2*(symmetry diagonal-Distance from center to a point)*(Side B)))
  • Angle B=180-Angle A
  • Angle B=Angle+Angle A
  • Angle B=arccos((Side D^2+Side C^2-Side A^2-Side B^2)/(2*((Side D*Side C)+(Side B*Side A))))
  • Angle B=180-Angle A
  • Angle B=Angle/2
  • Angle B=arccos((Side A^2+section 2^2-section 1^2)/(2*Side A*section 2))
Share Image
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!