Properties of shapes_6.a Flashcards
1
Q
Number of sides
A
n
2
Q
Number of triangles
A
n-2
3
Q
Interior Angle-Sum
A
(n-2) * 180
4
Q
One Interior Angle
A
[(n-2) * 180] /n
5
Q
Exterior Angle
A
360/n
6
Q
7 sides
A
heptagon
7
Q
9 sides
A
nonagon
8
Q
undecagon
A
11 sides
9
Q
dodecagon
A
12 sides
10
Q
10 sides
A
decagon
11
Q
kite
A
one pair opposite angles congruent, two pairs congruent sides, diagonals congruent
12
Q
Trapezoid
A
one pair parallel sides
13
Q
Isosceles trapezoid
A
one pair of opposite sides congruent, base angles congruent, diagonals congruent
14
Q
parallelograms
A
diagonals bisect, both pairs of opposite sides congruent and parallel, both pairs opposite angles congruent, consecutive angles are supplementary
15
Q
Rectangles
A
4 congruent 90 degree angles, diagonals are congruent
16
Q
Rhombus
A
4 congruent sides, diagonals are perpendicular, diagonals bisect opposite angles
