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Lesson 1: Trapezoid sheet has a large bottom 2.8dm, baby bottom 1.6dm, height 0.8dm.a) Calculate the area of the cardboard?b) Cut a quarter of the area. Calculate the area of the cardboard remaining?Lesson 2: ABCD rectangle with DC length 27cm, AD 20.4cm. E is a point on AB. Calculate the area of the triangle ECD?Lesson 3: (HSKG): A trapezoidal field with a baby bottom 26m, the bottom is 8m lower than baby, the bottom is 6m lower. Average 100m2 harvested 70.5 kg paddy. How much is the field ha...
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Lesson 1: Trapezoid sheet has a large bottom 2.8dm, baby bottom 1.6dm, height 0.8dm.
a) Calculate the area of the cardboard?
b) Cut a quarter of the area. Calculate the area of the cardboard remaining?
Lesson 2: ABCD rectangle with DC length = 27cm, AD = 20.4cm. E is a point on AB. Calculate the area of the triangle ECD?
Lesson 3: (HSKG): A trapezoidal field with a baby bottom 26m, the bottom is 8m lower than baby, the bottom is 6m lower. Average 100m2 harvested 70.5 kg paddy. How much is the field harvested?
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
A rectangle with a length and a half in width. If each dimension is added 2m new rectangle with additional 64m2 area. Calculate the area of the original rectangle?
A rectangle with a length and a half in width. If each dimension is added 2m new rectangle with additional 64m2 area. Calculate the area of the original rectangle?
A rectangle with a length and a half in width. If each dimension is added 2m new rectangle with additional 64m2 area. Calculate the area of the original rectangle?
A rectangle with a length and a half in width. If each dimension is added 2m new rectangle with additional 64m2 area. Calculate the area of the original rectangle?
A rectangle with a length and a half in width. If each dimension is added 2m new rectangle with additional 64m2 area. Calculate the area of the original rectangle?
1My class of 32 students are going to a Fun Fair for children and need to buy entrance tickets for each student. The price of an entrance ticket is 5,000 dong. The good news is that when we buy 5 tickets, the Fun Fair gives us 1 extra ticket for free. How much does my class have to pay to buy enough tickets for the whole class?2Minh’s family needs to tile the floor of a rectangular room, 5 m in length and 3.8 m in width, with square tiles. The length of the side of each tile is 0.5 m. Each of th...
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1>My class of 32 students are going to a Fun Fair for children and need to buy entrance tickets for each student. The price of an entrance ticket is 5,000 dong. The good news is that when we buy 5 tickets, the Fun Fair gives us 1 extra ticket for free. How much does my class have to pay to buy enough tickets for the whole class?
2>Minh’s family needs to tile the floor of a rectangular room, 5 m in length and 3.8 m in width, with square tiles. The length of the side of each tile is 0.5 m. Each of the tiles close to the wall, if not a whole one, is cut from a whole tile. The total number of tiles needed to tile the room is ?
3>A student cycles from home to school in a distance of 1,200 m with speed of 2.5 m/s. There are 4 crossroads on the way; the time to stop for red lights at each crossroad is 30 s the longest. The longest time it takes the student to reach school is?
A rectangle with a length and a half in width. If each dimension is added 2m new rectangle with additional 64m2 area. Calculate the area of the original rectangle?