The ratio of 5:12 to 20
(5/12):20=(5/12 ×12):(20×12)=5:240=1:48
The ratio is 1 / 48
Hope to adopt, if you don't understand, please ask
RELATED INFORMATIONS
- 1. It is known that ABC, ad and be are the heights of BC and AC sides respectively, the extension lines of EB and ad intersect at h, and AC = BH. Please prove that ad = BD
- 2. (a+b)(a2-ab+b2)-(a+b)2 (a + b) (a ^ 2-AB + B62) - (a + b) ^ 2 to simplify this formula, the answer is - 3A ^ 2b-3ab ^ 2, but how do you get it,
- 3. Note that the domain of function y = √ 1-lg (x-1) is set a, and the domain of function y = √ 3 * 3-x-3 is set B. find a ∩ B
- 4. The volume of a cylinder is 157 cubic centimeter. The area of the base of a cone is 6.28 square centimeter, and the height of a cone is () centimeter
- 5. A triangle is 150 meters long at the bottom, and the ratio of the bottom to the height is 6:5. How many square meters is the area of the triangle?
- 6. Only two of the prime numbers are even, and the rest are odd nothing
- 7. The bottom of a triangle warning sign is 1.8 meters and the height is 1.5 meters. What's the area of this warning sign?
- 8. It is known that, as shown in the figure, CD is the tangent of ⊙ o, C is the tangent point, and the extension line of diameter AB intersects CD at D, connecting OC and BC. (1) write three different types of conclusions; (2) if BD = ob, prove: CA = CD
- 9. As shown in the figure, P is in ∠ AOB, and points m and N are the symmetrical points of point P about OA and ob respectively. If Mn = 10cm, calculate the perimeter of triangle PEF
- 10. In the parallelogram ABCD, ∠ Abe = ∠ CDF, it is proved that the quadrilateral BEDF is a parallelogram
- 11. The area of a circle is 6.28 square meters, and its circumference is 6.28 square meters
- 12. Is it true that the square of x plus one is greater than or equal to zero? 1: X is equal to any number. 2: according to the steps of solving the problem, the equation does not hold
- 13. In triangle ABC, if a = 9, B = 10, C = 12, then the shape of triangle ABC is? Ask the people who will teach... Be grateful
- 14. 998 of 999 + 665 of 666 + 332 of 333-110 of 111
- 15. A cuboid reservoir is 8.5m long, 4m wide and 1.5m deep. What is the area of the reservoir?
- 16. Jiangsu Education Press sixth grade volume I mathematics supplementary exercise on a problem, online and so on The last question on page 47 of the supplementary exercises of mathematics in Volume 1 of grade 6 of Jiangsu Education Press, to calculate the formula, thank you. In addition, there are () expectation and () fight, please answer There is a two digit number. The number in one digit is two thirds of the number in ten digit. If you subtract three from a number in ten, it is equal to a number in one. What's the two digit number
- 17. Please use the substitution elimination method and the addition and subtraction elimination method to solve the equations respectively {2x+y=7 x+2y=8
- 18. Which two numbers add up to three and multiply by one ··Little friends don't understand·········
- 19. If the value of M-N is 0, then what should m and N satisfy A. M + n = 0; B, Mn = 0; C, M = n ≠ 0; m of D, n ≠ 1
- 20. How many square decimeters of wood board is needed to make a drawer that is 6 decimeters long, 4 decimeters wide and 2 decimeters high