Math Polygons WA3 Revision Flashcards
How many sides does a quadrilateral have?
4
How many sides does a pentagon have?
5
How many sides does a hexagon have?
6
How many sides does a heptagon have?
7
How many sides does an octagon have?
8
How many sides does a nonagon have?
9
How many sides does a decagon have?
10
What is the sum of interior angles in a polygon?
(n-2)*180
What is the sum of exterior angles in a polygon?
360
What is the formula of each interior angles in a regular polygon?
(n-2)*180 /n
What is the formula of each exterior angle in a regular polygon?
360/n
Regular polygons have ______ sides
equal
<a+<b = 180
supplementary angles
<a+<b+<c = 180
adjacent angles on a straight line
<a = <b
vertically opposite angles
<a+<b+<c+<d+<e = 360
angles at a point
Z Rule <a = <b
alternate angles, parallel lines
C Rule <a +<b = 180
interior angles, parallel lines
F Rule
corresponding angles, lines
rhombus
diagonally opposite angles in a rhombus are equal
parallelogram
diagonally opposite angles in a parallelogram are equal
<a +<b = 90
complementary angles
