câu này là 4 phải hok ? mk làm trong vn.doc thấy họ bảo đúng đóa .
câu này là 4 phải hok ? mk làm trong vn.doc thấy họ bảo đúng đóa .
Each face of a cube is painted with exactly one colour . What is the smallest number of colours needed to paint a cube so that no two faces that share an edge are the same colour ?
Các bạn giải chi tiết hộ mình nha !
A cube with an edge of 7cm. Q :
a. What is the cubic volume ?
b. What is the area aroud the cube ?
c. What is the total area of the cube ?
There are 4n pebbles of weights 1, 2, 3, . . . , 4n. Each pebble is coloured in one of n colours and there are four pebbles of each colour. Show that we can arrange the pebbles into two piles so that the following two conditions are both satisfied:
• The total weights of both piles are the same.
• Each pile contains two pebbles of each colour.
Find an edge of a cube knowing its surrounding area is 400 cm 2 find the side of a cube that knows the total area is 24
The length of each edge of a cube is 3 cm. The surface area of the cube, in , is
The length of each edge of a cube is 3 cm. The surface area of the cube, in cm2, is ...
The length of each edge of a cube is 3 cm. The surface area of the cube, in cm2, is ..........
A bag contains indentical balls of different colours.There are 12 red, 10 white, 8 yellow, 3 blue and 2 black balls.Without looking into the bag,John takes out the balls one by one.What is the least number of balls that John must take out from the bag in order to have at least 4 balls of the same colour?
The length of each edge of a cube is 3 cm. The surface area of the cube, in cm2, is