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

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✖The angle A is one of the angles of a triangle.ⓘ Angle A [∠A]

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✖The angle B is one of the angles of a triangle.ⓘ Base angles B,C of isosceles triangle when vertex angle A is known [∠B]

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

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!

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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

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Area of an isosceles triangle when length sides and angle between them are given GO

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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

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Radius of the inscribed circle of an isosceles triangle GO

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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))

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