jiben（疾奔）.docVIP

jiben（疾奔） 1 squares C perimeter, S area, a side length Circumference = side length * 4 C=4a Area = side length * side length S=a * a 2. V: volume a: edge length Surface = edge length x x x * 6 S table =a x a * 6 Volume = edge length x edge long x edge length V=a * a * a 3 rectangle C perimeter, S area, a side length Circumference = (length + width) * 2 C=2 (a+b) Area = length * width S=ab 4 cuboid V: volume s:, area a: long, b: width, h: height (1) surface area (length * width + length * height + width * height) * 2 S=2 (ab+ah+bh) (2) volume = * * width * height V=abh 5 triangle S area a, bottom h high Bottom area = x height / 2 S=ah / 2 Triangle area high = x 2 / bottom Triangle area = x 2 / high 6 parallelogram S area a, bottom h high Area = base * height S=ah 7 trapezoid S area a, bottom B, bottom h high Area = (+ down on the bottom end) * / 2 S= (a+b) * H / 2 8 round S C - d= r= diameter, perimeter area radius (1) = =2 * * * perimeter diameter pi * radius C= II d=2 II R (2) * * * area = radius radius 9 cylinder V: volume h: high S; bottom area r:; base radius c:; bottom perimeter (1) the side area = the circumference of the bottom * high (2) surface area = side area + base area * 2 (3) volume = base area * height (4) = 2 / X volume side area radius 10 cone V: volume h:, high S; base area r:, bottom radius Volume = bottom area x height / 3 1 number per copy = total The total number of copies per =. The total number of copies of each number =. 21 multiples * multiples = multiples A few times, 1 times times = A few times, ratio = 1 times 3 speed x time = distance Distance / speed = time Time = distance / speed 4 unit price = quantity = total price Price / price = number The total number of 83019 = price 5 work efficiency * working hours = work amount The total amount of work, work efficiency = working time The total amount of work, work time = work efficiency 6 addend addend = + and And a = other addend addend 7 - meiosis difference = minuend Minuend - difference =