unit 10 Flashcards
1
Q
circumference
A
distance around circle (like perimeter)
2
Q
diameter
A
distance across the widest part of a circle
3
Q
radius
A
distance across half of a circle (from the center to the outer edge)
4
Q
base
A
a side of a polygon, particularly one oriented perpendicular to the direction in which height is measured
5
Q
height
A
distance from the “top” of the object/figure to its base (the two must be perpendicular)
6
Q
composite figure
A
a shape made up of 2 or more polygons
7
Q
area formulas: circle
A
A = πr2
8
Q
area formulas: rectangle
A
A = b x h
9
Q
are formulas: triangle
A
A = 1/2 bh
10
Q
area formulas: parallelogram
A
A = b x h
11
Q
area formulas: trapezoid
A
A= b1+b2 ÷ 2 x h
