A triangle and a parallelogram have the same area and the same base. The height of parallelogram is 20cm, and the height of triangle is 20cm______ cm．

A triangle and a parallelogram have the same area and the same base. The height of parallelogram is 20cm, and the height of triangle is 20cm______ cm．

Because the triangle and the parallelogram have the same area and the same bottom, the height of the triangle is twice that of the parallelogram

The area of a triangle is equal to that of a parallelogram, and the height is also equal. The bottom of a triangle is 4 meters, and the bottom of a parallelogram is?

2

If the height of a triangle is 10 meters, the height of a parallelogram is () meters

If the height of a triangle is 10 meters, the height of a parallelogram is (5) meters

The bottom of the triangle vegetable field is 200 meters, with an area of 0.8 hectares. How high is it?

1 ha = 1000000 m2
0.8 ha = 800000 M2
Set the height to X
1/2×200x=800000
100x=800000
x=8000
A: the height is 8000 meters

The area of a triangle is 0,3 hectares. The height of the bottom edge is 80 meters. How long is the bottom edge? Use the equation to solve

Set the bottom x meters
1/2*x*80=0.3*10000
40x=3000
x=75
A: the bottom is 75 meters long

If the area of a triangle is equal to that of a parallelogram and the ratio of its base is 3:1, then the ratio of its height to that of its parallelogram is (?)

2: Absolutely!

There is a rectangular grassland, 60 meters long and 48 meters wide. Plant trees on both sides of the 6-meter-wide Corridor around it to ensure that there is one tree at the corner and the spacing is equal. The two trees inside and outside should be aligned. At least how many trees should be planted?

60 + 6x2 = 72m
48 + 6x2 = 60m
The greatest common factor of 72 and 60 is 12
need
(72 + 60) x2 △ 12 = 22 trees
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A rectangular green space is 120 meters long and 30 meters wide. Trees should be planted around it and at four corners. The distance between two adjacent trees is equal, and at least one tree should be planted

A: 10 trees, including one in each corner. One tree is planted every 30 meters on the 120 meter long side, with a total of 6 trees on both sides

The figure below is a rectangular grassland, 32 meters long and 24 meters wide, with a road 2 meters wide in the middle. Calculate the area of the shadow part of the grassland

The center line of the path is 32 + 24-1-1 = 54 meters. The area of the path is 54 * 2 = 108 square meters. The area of the grass shadow is 32 * 24 = 768 square meters - 108 square meters = 660 square meters. It can also be calculated as follows: the length of the path in the horizontal direction is 24-2 * 3 = 18 meters, and the length of the path in the vertical direction is 32 + 2 * 2 = 36 meters

There is a rectangular grassland, 48 meters long and 30 meters wide. It is surrounded by a 6-meter-wide corridor, and trees are planted on both sides to ensure the safety of each corner
There is one tree, and the distance between trees is equal. How many trees should be planted at least?

There is a rectangular grassland, 48 meters long and 30 meters wide. It is surrounded by a 6-meter-wide corridor, and trees are planted on both sides to ensure that there is one tree at each corner, and the distance between trees is equal. At least how many trees should be planted?
Aisle length 48 + 6 × 2 = 60m
Aisle width 30 + 6 × 2 = 42m
The greatest common factor of 60 and 42 is 6
At least plant trees:
（60+42）×2÷6
=204÷6
=34 trees