There are two sticks, which are 12 cm and 44 cm long respectively. They should be cut into sticks of the same length. No one is allowed to leave any sticks. How long can each stick be? How many sticks are cut into?

There are two sticks, which are 12 cm and 44 cm long respectively. They should be cut into sticks of the same length. No one is allowed to leave any sticks. How long can each stick be? How many sticks are cut into?

12 = 3 × 444 = 4 × 1112 cm, the greatest common divisor of 44 cm is 4 cm, that is, each stick is the longest 4 cm. A total of (12 + 44) △ 4 = 28 (sticks) a: each stick can be the longest 4 cm, a total of 28 sticks

A piece of iron wire is cut off 40% in the first time and 25% in the second time. There are 56 meters left. How long is the iron wire
Explanation·

Wire length x
Residual x-0.4x = 0.6x after the first shearing
After the second shearing, the remaining 0.6x-0.25 * 0.6x = 56
X=124.4m

The length of a 20 cm round log stick is equal, and the surface area of the two round log sticks has increased by 56.52 square centimeters. Q 1 what is the radius of the bottom of this round log
I want to explain it in detail, and I want to explain it in detail

The length of the log stick is equal, the side area of the two log sticks is unchanged, and the bottom surface is changed from two to four, so the increase of the surface area is twice of the bottom area of the log stick
Bottom area of log stick = 56.52g2 = 28.26cm2
So the square of the bottom radius of the round stick is 28.26 / 3.14 = 9
So the bottom radius of the round stick is 3cm