The industrial park is built on a rectangular plot of land with a length of 5 km and a width of 2 km. How many square kilometers is the area of that industrial park?
(đây là bài toán đố)
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a rectangular plot of land has perimeter 470m, width is 3/2 length. Calculate the area of that rectangle?
Given the rectangular land and its length is 3/4 km . Its width is shorter than its length by 1/12 km.
Then the area of land is ......... km2 (round to one decimal place)
Given the rectangular land and its length is 3/4 km . Its width is shorter than its length by 1/12 km.
Then the area of land is ......... km2 (round to one decimal place)
Câu 6:4.8l of oil weigh 3.648kg. How many liters of oil are there if they weigh 4.864kg?Answer: There are liters(Write your answer as a decimal in the simplest form)Câu 7:Inspecting products of a factory, we find that there are 97 qualified products out of every 100 products on average. What percent of the total products is qualified products?Answer: %Câu 8:A rectangular field has a width of 24.5m and its area equals the area of a square with the sides of 35m. Find the perimeter of that rectan...
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Câu 6:
4.8l of oil weigh 3.648kg. How many liters of oil are there if they weigh 4.864kg?
Answer: There are liters
(Write your answer as a decimal in the simplest form)
Câu 7:
Inspecting products of a factory, we find that there are 97 qualified products out of every 100 products on average. What percent of the total products is qualified products?
Answer: %
Câu 8:
A rectangular field has a width of 24.5m and its area equals the area of a square with the sides of 35m. Find the perimeter of that rectangular field.
Answer: m
Câu 9:
The area of a triangle ABC is , take the point M on BC such that BM=MC and the point N on AC such that AN=NC. Find the area of the triangle AMN.
Answer:
Câu 10:
A store sold 902kg of rice which is 10.25% of the total amount of rice. How many kilograms of rice were there in that store at first?
Answer: There were kilograms
The perimeter of a rectangular land is 90m. Its length is 7m longer than its width. The area of this land is
The perimeter of a rectangular land is 90m. Its length is 7m longer than its width. The area of this land is ....
Half the circumference of the land is:
90:2=45 {cm}
Land width is:
{45-7}:2=19 {cm}
Length land is:
19+7=26 {cm}
Area of this land is:
26x19=494 {\(cm^2\)}
Đ/S:494\(cm^2\)
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Half of the perimeter of a rectangular school yard is 0.24km. The width is of the length. Find the area of the yard in square meters?
Đổi 0.24km = 240m
Chiều rộng hình chữ nhật là: 240 : 3 = 80 (m)
Chiều dài hình chữ nhật là: 80 x 2 = 160 (m)
Diện tích hình chữ nhật là: 80 x 160 = 12800 (m2)
k cho mình nha
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A rectangular field has a width of 24.5m and its area equals the area of a square with the sides of 35m. Find the perimeter of that rectangular field.
Vì diện tích hình chữ nhật bằng diện tích hình vuông có cạnh là 35m. Suy ra: Diện tích hình chữ nhật là: 35 x 35 = 1225 (m2)
Chiều dài hình chữ nhật là: 1225 : 24.5 = 50 (m)
Chu vi hình chữ nhật là: (50 + 24.5) x 2 = 149 (m)
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Given a square with the length of one side is 8 cm and a isosceles triangle with the length of its base is 12 cm. If the area of the square is equal to the area of the isosceles triangle then what is the length of the height of the isosceles triangle, in cm?
