[mathematics] if the area of a parallelogram is y cubic centimeter and its height on one side is 5 cm, then the length of this side is 5 cm___ cm. To prepare a certain pesticide, three kinds of raw materials (a, B and C) should be used. The mass ratio of the three raw materials is 5:3:9. If the mass of the raw material a is 5xkg, the mass of the prepared pesticide is 5__ Kilogram Solve the above two problems

[mathematics] if the area of a parallelogram is y cubic centimeter and its height on one side is 5 cm, then the length of this side is 5 cm___ cm. To prepare a certain pesticide, three kinds of raw materials (a, B and C) should be used. The mass ratio of the three raw materials is 5:3:9. If the mass of the raw material a is 5xkg, the mass of the prepared pesticide is 5__ Kilogram Solve the above two problems

If the area of parallelogram is y square centimeter and the height of one side is 5 cm, the length of this side is (Y / 5) cm
Three kinds of raw materials (a, B and C) are used to prepare a certain pesticide. The mass ratio of these three raw materials is 5:3:9. If the mass of a raw material is 5xkg, the mass of the prepared pesticide is (5 + 3 + 9) XKG = 17xkg

If the length and width of a rectangle are increased by 5cm, the area is 125cm more than that of the original rectangle. What is the circumference of the original rectangle?

Let X be length and y be width
（x+5）*（y+5）=xy+125
We get x + y = 20
Original perimeter 2 (x + y) = 40

For a rectangle, the length and width are increased by 5cm and the area is increased by 150cm

150-5 × 5 = 125 square centimeter
Length and width: 125 △ 5 = 25cm
Perimeter: 25 × 2 = 50 cm

The length and width of a rectangle are increased by 5 cm, and the area is increased by 160 square cm. What is the perimeter of the original rectangle?
Explain the way of thinking

Let length be a, width b, (a + 5) (B + 5) = AB + 160, 5A + 5B = 135, a + B = 27, original perimeter 2 (a + b) = 54cm

When the length and width of a rectangle increase by 5 cm, its area increases by 125 square cm?

Let the length of the original rectangle be x cm and the width be y cm. According to the meaning of the title, the area of the added rectangle - the area of the original rectangle = 125 square cm. The equation is as follows: & nbsp; & nbsp; & nbsp; & nbsp; (x + 5) × (y + 5) - xy = 125 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; XY + 5x + 5

Two triangles with side lengths of 3cm, 5cm and 7cm can be put together into a quadrilateral. There are several different quadrilaterals, some of which are parallelograms
Two triangles with 3cm, 5cm and 7cm sides can be combined into a quadrilateral, which can be combined into several different quadrilaterals
Several of them are parallelograms

The same length edges must be put together. There are two spelling methods for each length
Only when the opposite sides are equal in length, they are parallelograms

It is known that the bottom surface of a straight quadrangular prism is 5 cm and 6 cm long with a diagonal line
It is known that the bottom of a straight quadrangular prism is a parallelogram with 5cm and 6cm sides and 8cm diagonal. The longest diagonal of the quadrangular prism is 10cm. Calculate the side area of the quadrangular prism

Well, I said that I had illegal content. I used pictures instead

As shown in the picture, the length of the bottom side of the square prism is 5cm, and the length of the side edge is 8cm. An ant starts from point a
As shown in the figure, the side length of the bottom of the regular prism is 5 cm, and the side edge length is 8 cm. An ant wants to climb from the vertex a on the bottom of the regular prism to the vertex C 'along the surface of the prism to eat food. So what is the shortest distance it needs to crawl?

Expand side a'B and side b'c along side ridge BB ', and connect AC'
∵AB=BC=5,CC‘=8,
According to Pythagorean theorem, AC '= √ AC & # 178; + CC' &# 178; = √ 10 & # 178; + 8 & # 178; = 2 √ 41 (CM)

If the diagonal length of a square prism is 3.5cm and the diagonal length of a side prism is 2.5cm, the volume of the prism is calculated

Let the side length of the bottom be a and H
According to Pythagorean theorem:
2a^2+h^2=(3.5)^2
a^2+h^2=(2.5)^2
Simultaneous solvable A and H
Volume v = a ^ 2 * H (bottom area multiplied by height)
So you can find the volume
I won't count

A parallelogram is 4 meters high, and its area is equal to that of a square with a side length of 6 meters

Square area = 6 & sup2; = 36 (M2)
Square area = parallelogram area = 36 (M2)
Base of parallelogram = area △ height = 36 △ 4-9 (m)