Answer:
Area of polygons
*Triangle=1/2bh or 1/2 x base x height
*square = s2
*rectangle = lw
*parallelogram = lh
*rhombus = sh
*kite = 1/2ab
*trapezoid=1/2(a+b)h
Area of regular polygon = 1/2pa... where p is the perimeter and a is the apothem.
Perimeter of polygons
*triangle=a+b+c
*rectangle=2(w+l)
*square=4a
*parallelogram=2(a+b)
*rhombus=4s
*trapezoid=a+b+c+d
*kite=2(a+b)
*pentagon=5s
*hexagon=6a
Surface area
*Multiply the length and width, or c and b to find their area. Multiply this measurement by two to account for both sides. Add the three separate measurements together. Because surface area is the total area of all of the faces of an object, the final step is to add all of the individually calculated areas together.
Circumference
*C=2πr
Volume of cylinder
*V=πr2h
