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13 terms

Chps. 10 & 11 Area Formulas

*use star to indicate multiplication;
STUDY
PLAY
Area of Rectangular Figures
b*h
Area of Parallelograms
b*h
Area of Triangles
1/2bh
Area of Trapezoids
1/2(b1+b2)h
M*H
Median of Trapezoid
1/2*(b1+b2)
Area of Kites and Rhombuses
1/2d1d2
Area of Regular Polygons
1/2SA*N
1/2AP
s
side
apothem
distance from the center of a regular polygon perpendicular to side
r
radius
n
number of sides
p
perimeter
Sector
theta(central angle or degree of arc)/360pir2