Angles of Polygons
Find the measure of angle  X
Sum of angles -90-114-78=___
(

n=__

n-2 )*180

90

x
x=
sum of angles =____
114
78
Name the shape
Find the measure of angle F
F
90
61
Name the shape
triangle, trapezoid, pentagon, or hexagon

What is the formula used to find the sum of interior

degrees for a polygon?

n x180, (n+3)X360, or (n-2)X180

For this shape  (heptagon)

n=

b
Angle b =
125
125
120
120
120

(n-2)*180

How many degrees for a triangle?
n=__
Sum of interior angles =
What is the measure for angle t
If all other internal angles = 639
t
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