The side length of a right triangle is 6cm, 8cm and 10cm respectively. The area of the triangle is [] square centimeter, and the height of the hypotenuse is [] cm

The length of a right triangle is 6cm, 8cm and 10cm respectively. The area of the triangle is [24] square cm, the height of the hypotenuse is [4.8] cm, 6 × 8 △ 2 = 24, 6 × 8 △ 10 = 4.8

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1. If the circumference of a rectangle is 12cm and its length is x, then the analytic expression of the function of Y with respect to X is? What is the value range of the independent variable x?
2. A rectangle with a length of 12cm and a width of 8cm is reduced by 1:4. The perimeter of the figure is () cm and the area is () square cm
3. If the circumference of a rectangle is 12cm, if the length is reduced by 1cm and the width is increased by 2cm, it is a square, then the area of the rectangle is CM & sup2; It's better to be an equation, but the formula is OK. If there is a fine process
4. It is known that the lengths of the three sides of the triangle ABC are 9cm, 12cm and 15cm. What is the height of the shorter side?
5. It is known that the length of a rectangle is twice the side length of a square, the width is 2 cm more than the side length of the square, and the area of the rectangle is 96 square cm larger than the area of the square. Find the side length of the square and the length and width of the rectangle
6. The rectangle is 121cm in length and 16cm in width. The area of this rectangle is four times that of the square with side length A. what is the side length of square a?
7. The side length of a square is 5. If the side length increases X and the area increases y, find the function expression between Y and X
8. Triangle AEC, AE = be, D and C are a point on AE and EB respectively and de = CE. Is quadrilateral ABCD isosceles trapezoid? Why?
9. The side length of square ABCD is 2, AE = EB, Mn = 1, the two ends of line Mn are on BC and CD, if △ AED is similar to triangle with m, N and C as vertex Find the length of CM
10. As shown in the figure, e is a point on the edge BC of rectangle ABCD, EF ⊥ AE, EF intersects AC respectively, CD intersects at points m, F, BG ⊥ AC, perpendicular foot is C, BG intersects AE at point H (1) Verification: △ Abe ∽ ECF; (2) Find the triangle similar to △ ABH and prove it; (3) If e is the midpoint of BC, BC = 2Ab, ab = 2, find the length of EM BG ⊥ AC is g, wrong number
11. In a group of rectangles with fixed area, when one side of the rectangle is 6cm long and the other side is 8cm long, let x (CM) and Y (CM) be the two sides of the rectangle respectively [(1) find the analytic expression of the function of Y with respect to X. is this function an inverse scale function? If so, please point out the practical significance of the scale coefficient.] otherwise, I won't. [(2) in a rectangle, if the ratio of the two sides of a rectangle is 3:1, what is the perimeter of the rectangle?] otherwise, I won't]
12. In a group of rectangles with fixed area, when one side of the rectangle is 6cm long, the other side is 8cm long, let the two sides of the rectangle be x (CM), y (CM) To find the analytic expression of the function of Y with respect to x, is this function an inverse scale function? If so, please point out the practical significance of the scale coefficient
13. 1. Calculate the area of the figure. (all units are cm). The bottom of the rectangle is 8.6cm, the height is 6cm. How many square centimeters is the area? Parallelogram bottom is 4.5, height is 2.8, area. Parallelogram bottom is 7.5, height is 3.12, area. Triangle bottom is 7.6, height is 12.5, area. Triangle bottom is 5.5, height is 10.2, area. Trapezoid bottom is 4.2, bottom is 6.8, height is 4, area. Trapezoid bottom is 3.5, bottom is 8.7, height is 2.4
14. If the length of a rectangle is reduced by 9cm and the width is increased by 6cm, it will become a square, and the areas of the two figures are equal . please!
15. If the length of a rectangle is reduced by 9cm and the width is increased by 6cm, it becomes a square, and the areas of the two figures are equal. Find the length and width of the original rectangle Solution of linear equations with two variables
16. If the length of a rectangle is reduced by 9cm and the width is increased by 6cm, it becomes a square, and the areas of the two figures are equal. Find the length and width of the original rectangle
17. For a cuboid with a square bottom, the total length of edges is 120cm, and the height is three times more than the side length of the bottom. The surface area of the cuboid can be calculated
18. How many cm are the length, width and height of the cuboid to maximize the surface area? There are analysis and steps
19. Two cuboids with a length of CM, a width of 3cm and a height of 1cm are used to form a large cuboid. The largest surface area of the cuboid is () and the smallest is ()
20. The first time is 1, the second time is 3, the third time is 6, the fourth time is 10, and the N times is how many cm is the circumference of the figure No wealth, sorry