Find a square with a side of 1.2 cm. 2. Find the volume of a cube with a side of 3.6 cm.

Find a square with a side of 1.2 cm. 2. Find the volume of a cube with a side of 3.6 cm. How many even three-digit numbers are there?

1) The area of the square is equal to the side of the square to the second degree.
S = (1.2 cm) ² = 1.44 cm².
2) The volume of a cube is equal to the edge of the cube in the third degree.
V = (3.6 cm) ³ = 46.656 cm³.
3) Let’s compose a progression in which A1 = 100, An = 998, d = 2. Find n.
100 + (n – 1) * 2 = 998.
(n – 1) * 2 = 898.
n – 1 = 898 ÷ 2.
n = 449 + 1
n = 450.
Answer: 1) the area is 1.44 cm², 2) the volume is 46.656 cm³, 3) 450 numbers.