How to find the angles of an isosceles triangle given three sides

Real math help.

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How Do You Find Missing Angles in an Isosceles Triangle?
Background Tutorials
Further Exploration

How Do You Find Missing Angles in an Isosceles Triangle?

Note:

Trying to find a missing interior angle measurement in a triangle? See if you're working with a special type of triangle such as an equilateral or isosceles triangle. If you are, that knowledge can help you. In this tutorial, see how identifying your triangle first can be very helpful in solving for that missing measurement. Take a look!

Keywords:

problem
triangle
isosceles
isosceles triangle
angles
angle
missing angle
find missing angle
find missing angles
congruent
congruent sides
congruent angles
equal sides
equal angles
triangle sum theorem
180
180 degrees
add to 180

Background Tutorials

Planes and Angles
- What is an Angle?
  Angles are a fundamental building block for creating all sorts of shapes! In this tutorial, learn about how an angle is formed, how to name an angle, and how an angle is measured. Take a look!
Polygon Definitions
- What is a Polygon?
  Got a closed figure with three or more sides? Then you have a polygon! In this tutorial, you'll learn about the properties of a polygon, see the names of the most popular polygons, and learn how to identify polygons. Check it out!
Finding Corresponding Parts
- What Does Congruent Mean?
  If two figures have the same size and shape, then they are congruent. The term congruent is often used to describe figures like this. In this tutorial, take a look at the term congruent!
Simplifying Expressions
- What are Like Terms?
  Combining like terms together is a key part of simplifying mathematical expressions, so check out this tutorial to see how you can easily pick out like terms from an expression

Further Exploration

Finding Angles in Triangles
- How Do You Find a Missing Angle in a Triangle?
  Trying to find a missing interior angle measurement in a triangle? Already know the other two interior angle measurements? Then you're set! Just remember that the interior angles of a triangle ALWAYS add up to 180 degrees. This tutorial shows you how to put this knowledge into an equation and solve to find that missing measurement!

Isosceles triangle

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[1] 2022/10/03 21:03 50 years old level / High-school/ University/ Grad student / Useful /

Purpose of useTo compute the angle below the horizon of a straight line between two distant locations on the earth

[2] 2022/06/12 09:13 30 years old level / An office worker / A public employee / Very /

Purpose of useNeeded top angle of triangle so that I could tell quickly if the crocheted triangle I was making was expanding at the correct rate to reach the base length at the right height

[3] 2022/05/18 22:28 60 years old level or over / A retired person / Useful /

Purpose of useI wish to create a set of isosceles triangular templates for setting the fences of a table saw jig, for cutting pieces to make up polygonal wooden rings (e.g. a 12-sided ring). The rings are then glued together in a stack to form the rough shape of a segmented bowl that will be turned on a wood lathe.

[4] 2022/04/13 22:10 60 years old level or over / Others / Very /

Purpose of useCalculate circle radius of a nonagon to draw and visualize Tesla vertex math.Comment/RequestTerrific complete presentation. Very clear illustration. Thank you for including both the algebra and trigonometry equations that are driving the algorithms of the calculator in its various modes. Excellent great product from Casio that demonstrates their commitment to intelligent design and pure functionality.

[5] 2022/04/07 02:55 20 years old level / An engineer / Very /

Purpose of useDESIGNING A DRILL BIT ANGLEComment/RequestMAKE BASE AND VERTEX ANGLE INPUT OPTION

[6] 2022/04/04 09:47 60 years old level or over / A retired person / Very /

Purpose of useFiguring out how to build a regular gambrel roof on a shed so all rafters are the same size. Worked well.Comment/RequestThanks!!

[7] 2022/02/18 04:21 20 years old level / An engineer / Useful /

Purpose of use90 degree spray nozzle area covered

[8] 2021/12/01 01:45 50 years old level / Others / Useful /

Purpose of usexmas tree design

[9] 2021/11/10 09:18 50 years old level / An office worker / A public employee / Useful /

Purpose of useUsed formula to create a triangle template to use for a quilt project

[10] 2021/10/20 00:34 50 years old level / Self-employed people / Useful /

Purpose of useDesigning Christmas tree frame for yard light display