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The bottom of a triangle is 7 meters. If the bottom is extended by 2 meters, then the area will be increased by 6 square meters. What is the original area of the triangle Do not list equation
Height = 6 × 2 △ 2 = 6 (m)
Area = bottom × height △ 2 = 7 × 6 △ 2 = 21 (square meters)
A triangle is 7 meters. If the base is extended by 2 meters, the area will be extended by 6 square meters. How many square meters is the original triangle area?
Height = 6 × 2 △ 2 = 6m;
Area = 7 × 6 △ 2
=21 square meters
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The park area of 30 square meters, green space accounted for 65%, how many square meters of green space? As the title
30 * 65% = 19.5 M2
In the park, the green area accounts for 60% of the total park area, and the building area accounts for 10% of the total area. The green area is 1200 square meters more than the building area. What is the total area of the park?
Total park area
=1200÷（60%-10%）
=1200÷50%
=2400 square meters
The garden covers an area of 9 / 10 hectare, of which lawn covers 1 / 5 hectare and flower bed covers 1 / 10 of the total area
Garden area = 1 / 10 of total area = 9 / 100 ha
1 / 5-9 / 100 = 11 / 100 ha
The radius of the garden in the middle of the circular street is 10 meters. Outside the garden, there is a 1-meter-wide circular path. What is the area of the path? What does each book ask for
Large circle radius = 10 + 1 = 11
Large circle area = 3.14x11? = 379.94
Small circle area = 3.14x10? = 314
The area of the path is 379.94-314 = 65.94
Does the building area include green space?
The building area is also called the expanded area of the building. It refers to the sum of the plane area of each floor measured by the outer wall line of the residential building. It is an economic index to indicate the size of a building. It includes three items, namely, the usable area, the auxiliary area and the structural area
The total area of the park is 24000 square meters, of which buildings and roads account for 25% of the total area of the park, and the rest is green space. How many square meters is the green area of the park?
24000×（1-25%），
=24000×75%，
=18000 square meters;
Answer: the green area of Street Park has 18000 square meters
The area of a triangular vegetable field is 0.3 hectare and its bottom is 150 meters. How many meters is its height?
0.3 ha = 3000 m2
Let it be x meters high
x×150÷2＝3000
x＝40
A triangular vegetable field with a bottom of 80 meters and an area of 0.6 hectares. How many meters is the height of this triangular vegetable field
0.6 ha = 6000 m2
Suppose the height of this vegetable field is x meters
0.5X80x=6000
x=150
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