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Math A Review
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Formulas
| Figure |
Perimeter |
Area |
| Triangle |
P = a+b+c |
A = 1/2bh |
| Square |
P = 4s |
A = s2 |
| Rectangle |
P = 2l + 2w |
A = bh |
| Parallelogram/Rhombus |
P = a+b+c+d |
A = bh |
| Trapezoid |
P = a+b+c+d |
A=½ (b1 + b2)h |
| Circle |
Circumference c=2PI r |
A=PIr^2 |
Perimeter of any polygon: find the sum
of all of the sides
Area of polygon not listed above: divide the area of the
polygon into any polygon(s) listed above that you
do
have an area formula for then add those areas to get the total area.
Volume V=LWH (Rectangular Solid)
PI = 3.14159
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