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A rectangular flower bed with one side against the wall, 8 meters long and 6 meters wide, should be fenced on the other three sides. How long does the fence need? At least how many meters?
Add two meters wide and one length
6 + 6 + 8, 20 meters
One side is against the wall, and the other three sides are surrounded by a 12 meter long fence to form a rectangular flower bed
One side against the wall, the other three sides with 12 meters long fence into a rectangular garden
(1) If the length of the side of the flower bed against the wall is x (meters), what is the area of the flower bed y?
(2) When the length x changes from 3 meters to 6 meters, how does the area y change?
(3) When the length x changes from 8 meters to 10 meters, how does the area y change?
(4) With the increase of X, what is the change trend of Y? When is the maximum of Y?
1.y=12x
2. X expanded by 2 times, and area y expanded by 2 times
3. X expanded by 1.25 times, area y expanded by 1.25 times
4. With the increase of X, y also increases. When x = 12, y is the largest
There is a rectangular flower bed. One side is against the wall, and the other three sides are surrounded by a fence. The fence is 26 meters long
Someone can't help me. I'll give it to the teacher tomorrow. What time is it? You see, how pitiful I am
Isn't it
There is a rectangular flower bed, one side against the wall, the other three sides surrounded by a fence, the fence is 26 meters long,
One side of the flower bed is 6 meters long. Please find the area of this flower bed
A:
26-6 = 20m
20 / 2 = 10m
10 * 6 = 60 square meters
A: the area of this garden is 60 square meters
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