There is a rectangle with a circumference of 32.6 decimeters and a length of 8. What's its area?

RELATED INFORMATIONS

• 1. It takes 65 seconds for a train to cross the 990 meter bridge, and it takes 10 seconds for the train to pass by a wire at the same speed
• 2. The perimeter of the rectangle is 38 cm, the known blank width is 5 cm, and the shadow part is a square 1. The shadow is a square. 2. The width of a rectangle is five centimeters
• 3. The taxi charging standard of a city is: the starting price is 12.5 yuan, 1.5 yuan per kilometer from 3000 meters to 5000 meters, and 2.5 yuan per kilometer after 5 kilometers If someone takes x (x ＞ 5) kilometers, write down the cost he should pay with algebraic formula 2. If he pays 53 yuan, calculate the distance he takes Please hurry up. It's urgent
• 4. Draw the rectangle nailed with wooden strips into parallelogram and compare their perimeter and area 1. Perimeter and area change. 2. Area change, perimeter unchanged. 3. Perimeter change, area unchanged In rectangle, square and circle with equal perimeter, () has the largest area?
• 5. Speed up the math problem 1. The selling price of a certain type of mobile phone in June is 2000 yuan. After two successive price cuts, the current selling price is 1280 yuan. If the percentage of each price cut is the same, calculate the percentage 2. It is known that the equation (a + 2) x & # 178; - (2a-1) x + a = 0 has two unequal real roots, and the value range of a is obtained 3. It is known that the univariate quadratic equation x & # 178; + 2mx + (M + 2) * (m-1) = 0 (M is a constant) (1) If the equation has two unequal real roots, find the value range of M; (2) If the equation has two equal real roots, find the value of M; (3) If the equation has no real root, find the value range of M It's better to have a process and some bonus points
• 6. In a parallelogram, the perimeter is equal to 48. (1) if the length of one side is known to be 12, the length of each side can be obtained; (2) if AB = 2BC, the length of each side can be obtained; (3) if the diagonal AC and BD intersect at point O, the difference between the perimeter of △ AOD and △ AOB is 10, the length of each side can be obtained
• 7. Mathematics application problem (small rise early help (1) When the fox runs 5 steps, the dog runs 3 steps. When the dog runs 4 steps, the fox runs 7 steps. Now that the fox has run 30 meters, the dog begins to chase it. How many meters can the dog chase the fox? (2) When the tax collection hall goes to work, the tax payers have already lined up for a long time, and the number of people is increasing at an even speed. If the hall has only five windows to work, it will take 10 hours to complete, and 12 windows to work at the same time, and it can be completed in three hours. Now, if you want to finish it in two hours, how many windows should you open at the same time?
• 8. In a square piece of paper with a circumference of 100cm, what is the radius of the largest circle?
• 9. Application questions 1. What's the angle between the hour hand and the minute hand at 3:5? 2. What's the angle between the hour hand and the minute hand at 3:50? 3. After 4 o'clock, how long does it take for the minute hand to coincide with the hour hand for the first time? Well meaning elder brother and elder sister, please help younger brother. Younger brother's share is gone,
• 10. If the length of one side of a square increases by 2cm and the length of the other side decreases by 2cm, how does its area change? Why
• 11. 0.000043 is expressed as 0.000043 by scientific notation______ ．
• 12. 0.000000154 is expressed by scientific notation___________ .
• 13. 0.0000002 is expressed by scientific notation
• 14. 7.35 million tons in scientific notation
• 15. 120000 scientific notation
• 16. 2.89 million in scientific notation
• 17. 5 out of 6 hours = (?) seconds
• 18. How many 10 seconds are there in six hours?
• 19. 3 hours 18 minutes 36 seconds = () hours
• 20. How to express 50340.6 in scientific notation