How to get s = v0t + 1 / 2at square

How to get s = v0t + 1 / 2at square

How to judge the direction of velocity and acceleration in V-T image

In the first quadrant of the V-T image, if the velocity increases with time, it means that the direction of acceleration and velocity are in the same direction, and the direction is positive, otherwise it is negative

What are the acceleration direction and velocity direction in the image?
Please be more specific! Thank you!

In V-T image
Speed direction: look at the positive and negative of the speed value
Acceleration direction: see whether the line is inclined upward (acceleration is positive) or downward (acceleration is negative)
Acceleration or deceleration depends on whether the direction of velocity and acceleration is the same or how the velocity changes

A square with a side length of 4cm is folded to form the side of a quadrangular prism. If the bottom of the quadrangular prism is a square, the side length of the square is () cm~~
1 + 2-334 + 5 + 6-7-8 +. + 2002-2003-2004 process and results
If there are five points in the plane, and every two points are connected by a straight line, you can get () straight lines at most and () straight lines at least
Three lines in the plane divide the plane into at least () blocks and at most () blocks
Urgent~~

① The side length of the square is (1) cm. (2) "1 + 2-334 + 5 + 6-7-8 +. + 2002-2003-2004" is wrong. It should be: 1 + 2-3-4 + 5 + 6-7-8 +. + 2002-2003-2004 = - 2 × (2004 / 4) = - 1002. (3) there are five points in the plane. If each two points are connected by straight lines, you can get at most (10) straight lines, at least

Junior high school mathematics question: as shown in the figure, the bottom side of the hexagon is 10cm long, and the side edge is 6cm long. Observe the model and answer the question
How many faces are there? What are their shapes? Which faces have the same shape and area?
2. How many edges are there? What are their lengths?
I'm sorry that I don't have any pictures. The picture is a hexagonal prism. If any expert can answer it, thank you very much

See no, see No
There are 8 faces in total (1 face on the top and 1 face on the bottom, 6 faces on the side)
The top and bottom are regular hexagons, and the six sides are rectangles
The six sides are exactly the same, the area is exactly the same, the top and bottom are exactly the same, the area is exactly the same
There are 18 ridges, 6 in the top and 6 in the bottom
The length of the top and bottom is 10, and the side edge is 6cm long

A triangular prism can be directly drawn. Its bottom side length is 3.5cm, and its side edge length is 4cm
(1) What is the side area?

I don't know

A hexagonal prism is 5cm long on one side and 4cm long on the other?

The sum of the lengths of the bottom edges is 4 * 6 * 2 = 48
The sum of the length of the side ribs is 5 * 6 = 30
Therefore, the length sum of all edges is: 30 + 48 = 78

What is the volume formula of prism
What is the volume formula of a hexagonal prism

V prism = sh (s is the base area of the prism, h is the height of the prism)

How to calculate the side area of the seven prism

Its side area is the length of its bottom edge multiplied by the length of its side edge multiplied by seven

If the bottom is a rhombic prism, its side edges are perpendicular to the bottom, and the length of the side edges is 5, the length of its diagonal is 9 and 15 respectively, then the side area of the prism is ()
A. 130B. 140C. 150D. 160

As shown in the figure, in abcd-a'b'c'd ', the two diagonals are a'c = 15cm, BD' = 9cm, and the side edges are AA '= DD' = 5cm. Both ∵ BDD 'and ∵ ACA' are right triangles. According to Pythagorean theorem, ac2 = 152-52 = 200, BD2 = 92-52 = 56, AC = 102, BD = 214 ∵ AC, BD