Surface area = 2 * (90+48+120) = 2 * 258 = 516cm2.
The total capacity of Xiaoming's rice cooker is 3 liters. Fill a bowl with water and pour it into the rice cooker five times, which will make the rice cooker half full. How many milliliters is there in a bowl of water?
Each bowl = 3L/2/5 = 0.3L = 300ml;
Xiao Qiang's family bought a new rectangular goldfish bowl, which is 80 cm long and 50 cm high. How many liters of water can this goldfish bowl hold at most?
Volume =80*50*50=200000cm? = 200 litres
Grandma made a new combined cupboard, which is 3.5 in length, 0.8 in width and 1.2 in height. The volume of a quilt is about 400 cubic decimeters. How many quilts can this combined cabinet hold at most?
Number of articles = 3.5 * 0.8 *1.2/(400/1000) = 3.5 * 2.4 = 8.4;
Eight at most.
A sealed liquid medicine glass container, filled with 120 liters of liquid medicine. It is known that the lengths of three sides intersecting a vertex are 10dm, 6dm and 5dm respectively. How deep is the potion in the glass container?
1、 120/ 10 * 6 = 2dm；
2、 120/ 10 * 5 = 2.4dm；
3、 120/5*6=4dm