1, squared (c: perimeter s: area a: side length) perimeter = side length× 4c = 4a area = side length× side length s = a× a.
2. The surface area of the cube (v: volume a: side length) = side length × side length× 6s table =a×a×6, volume = side length× side length× side length v = a× a× a..
3. rectangle (c: perimeter s: area a: side length) perimeter = (length+width) ×2 C=2(a+b), area = length × width S=ab.
4. Cuboid (V: volume S: area A: length B: width H: height)
(1) surface area (length× width+length× height+width× height )× 2s = 2 (AB+ah+BH)
(2) volume = length× width× height V=abh
5. Triangle (s: area a: base h: height) area = base × height ÷2 s=ah÷2, triangle height = area ×2÷ base = area × 2 ÷ height.
6. parallelogram (s: area a: bottom h: height) area = bottom x height s=ah
7. Trapezoidal (s: area a: upper bottom b: lower bottom h: height) area = (upper bottom+lower bottom) × height ÷2 s=(a+b)× h÷2.
8. Circle (s: area c: perimeter л d= diameter r= radius); Circumference = diameter× л = 2×л× radius c = л d = 2 л r; Area = radius × radius× л
9. Cylinder (V: volume H: height S: bottom area R: bottom radius C: bottom circumference); Transverse area = bottom circumference × height =ch(2лr or л d); Surface area = lateral area+bottom area × 2; Volume = bottom area × height (4) Volume = lateral area ÷2× radius.
10, cone? (v: volume h: height s: bottom area r: bottom radius) volume = bottom area × height÷ 3.