How many parallelograms can a tangram make

RELATED INFORMATIONS

• 1. The square of a negative number is 169. Find the negative number,
• 2. What is the square of a number equal to a negative number
• 3. The square of two x minus three X is equal to two? Find two values of X
• 4. 37 × 36 vertical
• 5. 0.75 * 2.07 to two decimal places
• 6. 0.05 × 208 =? 2.75 × 2.2 =? 0.049 × 45 = (two decimal places can be reserved) This is a reward for the money! No answer, no answer!
• 7. 1 yuan equals 10 Jiao, 1 jiao equals 10 Fen, 10 Fen multiplied by 10 Fen = 1 yuan, so 1 jiao multiplied by 1 jiao = 1 yuan. Why? Thank you
• 8. How much is 1000 yuan
• 9. What is six eighths plus five eighths
• 10. The cover area of a mathematics book is about 310. What's the unit The volume of this mathematics book is about 250. Who should be the unit
• 11. Two thirds of eighteen is equal to what part of sixteen?
• 12. How many parts is 500 divided by 300
• 13. 4 divided by 7? Urgent! Urgent!
• 14. What is the fraction of what? How to calculate?
• 15. What's the fraction of a number? What's the method to find the number?
• 16. Question 14 of the first survey and test in 2011 Nantong senior high school Given that the length of the middle line on the waist of an isosceles triangle is 3 under the root sign, what is the maximum area of the triangle?
• 17. How to calculate the full score of 90 in 120
• 18. Find the limit Lim x →∞ [(2x + 1) ^ 4 (x-1) ^ 6-5x (x ^ 8 + 8)] / (x + 2) ^ 10 =? Use Lim x →∞ [(2x + 1) ^ 4 (x-1) ^ 6-5x (x ^ 8 + 8)] / (x + 2) ^ 10 =? The simplest way to find How does the answer "original = LIM (2 ^ 4x ^ 4x ^ 6) / x ^ 10" come out? What is the principle?
• 19. 2cos55 ° - root sign 3 times sin5 ° divided by cos5 °
• 20. sin5/3π= ,cos5/3π