1
Q
if the radius of a circle or the side length of a square is change, then the size of the entire figure changes
A
porportionally
2
Q
apothem
A
the distance form a center to a side
3
Q
composite figure
A
shape made up of simple shapes
4
Q
1/2(san)
A
also could use the area of the triangle times the number of sides
s= length of sides
n= sides
a=apothem
5
Q
area addition postulate
A
add the areas of the shapes to find the area of the whole shape
6
Q
how to estimate area of irregular shapes
A
use coordinate plane to estimate the number of blocks by counting
