Angles Flashcards
What do angles in a trapezium always add up to?
360*
What do angles on a right angle always add up to?
90*
What do angles on a straight line always add up to?
180*
What do vertically opposite angles always add up to?
Each other
What do angles around a point always add up to?
360*
What do angles in a triangle always add up to?
180*
What is the rule for angles on an equilateral triangle?
All angles are equal
What is the rule for angles on an isosceles triangle?
Base angles are equal
What is the rule for angles on a scalene triangle?
Angles all add up to 180*
How many sides does an equilateral triangle have?
3
How many sides does a square 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 a Octogon have?
8
How many sides does a Nonagon have?
9
How many sides does a decagon have?
10
What is the size of an exterior angle on an equilateral triangle?
120*
What is the size of an exterior angle on a square?
90*
What is the size of an exterior angle on a pentagon?
72*
What is the size of an exterior angle on a hexagon?
60*
What is the size of an exterior angle on a heptagon?
51*
What is the size of an exterior angle on an octagon?
45*
What is the size of an exterior angle on a nonagon?
40*
What is the size of an exterior angle on a decagon?
36*
What is the size of an interior angle on an equilateral triangle?
60
What is the size of an interior angle on a square?
90*
What is the size of an interior angle on a pentagon?
108*
What is the size of an interior angle on a Hexagon?
120*
What is the size of an interior angle on a Heptagon?
129*
What is the size of an interior angle on a Octagon?
135*
What is the size of an interior angle on a Nonagon?
140
What is the size of an interior angle on a Decagon?
144*
What is the sum of all interior angles on an equilateral triangle?
180*
What is the sum of all interior angles on a square?
360*
What is the sum of all interior angles on a Pentagon?
540*
What is the sum of all interior angles on a Hexagon?
720*
What is the sum of all interior angles on a Heptagon?
900*
What is the sum of all interior angles on a Octagon?
1080*
What is the sum of all interior angles on a Nonagon?
1260*
What is the sum of all interior angles on a Decagon?
1440
What do an interior angle and an exterior angle add up to?
180*
What do the exterior angles in a polygon add up to?
360*
What do the sum of the interior angles equal?
(N-2) X 180*
N is the number of sides in the polygon
What are parallel lines?
Parallel lines are two or more lines that are always the same distance apart
What three angles will any lines crossing two perpendicular lines create?
Corresponding angles, alternate angles and co-interior angles
What is the rule for corresponding angles?
They are the same / equal
What letter shape do corresponding angles form?
F
What is the rule for alternate angles?
Alternate angles are equal
What letter shape do alternate angles form?
Z
What is the rule for co-interior angles?
Co interior angles add up to 180*
What letter shape does co-interior angles form?
C
