www.geom.uiuc.edu/~dwiggins/conj06.html

We have seen in the Triangle Sum Conjecture that the sum of the angles in any
triangle is 180 **degrees**. The **Quadrilateral** Sum Conjecture tells us the sum of the
...

www.reference.com/math/many-degrees-quadrilateral-3bdd32915227ae84

There are 360 **degrees** in a convex **quadrilateral**. A convex **quadrilateral** is made
up of four sides and four corners, or angles. None of the angles bend inward ...

www.coolmath.com/reference/polygons-04-quadrilaterals

Properties of **quadrilaterals**, interior angles of **quadrilaterals** Polygons: Properties
of ... So, the sum of the interior angles of a **quadrilateral** is 360 **degrees**.

www.aaamath.com/geo612x3.htm

Example: **How many degrees** are in the fourth angle of a **quadrilateral** whose
other three angles are 80^{o} and 110^{o} and 95^{o}? Answer: 360^{o} - 80^{o} - 110^{o} - 95^{o}
...

sciencing.com/degrees-quadrilateral-8367679.html

Apr 24, 2017 **...** In order to solve **many** geometry problems, it's important to understand the basics
of angle measurement and the rules that all polygons follow.

www.theproblemsite.com/reference/mathematics/geometry/quadrilaterals/the-basic-quadrilateral

But what we do know is that the sum of their interior angles is 180 **degrees**. ... is a
"special" **quadrilateral** like a rectangle or a square, we don't know **much** about ...

www.aaaknow.com/lessonFull.php?slug=geoFindAngleQuad

The sum of the interior angles of a **quadrilateral** are equal to 3600°. ... Example:
**How many degrees** are in the fourth angle of a **quadrilateral** whose other angles
...

socratic.org/questions/why-is-the-sum-of-angles-in-a-quadrilateral-equal-to-360-degrees

Jan 9, 2016 **...** A **quadrilateral** can be divided with a diagonal into two triangles each with an
interior angle sum of 180∘ ...

www.quora.com/How-many-degrees-are-in-a-quadrilateral

If you mean the sum of the interior angles, 360. You can always divide a
**quadrilateral** into two triangles, each of which has 180 **degrees**. Well ...