As shown in the figure, in the quadrilateral ABCD, AC bisector angle bad, CE is perpendicular to point ab. if angle ADC plus angle ABC is equal to 180 degrees, ad plus AB is equal to 2ae AD + AB equals 2ae, and CD equals CB

In RT △ ACF and RT △ ace, CF = CEAC = AC ≌ RT △ ACF ≌ RT △ ace ≌ AF = AE ≌ ADC + ∠ ABC = 180 °∠ ADC + ∠ FDC = 180 °

RELATED INFORMATIONS

1. Given vector a = (- 3,2,5) B = (1, - 3,0) C = (7, - 2,1) find | A-B + C | ^ 2 (| a | + | B | + | C |) ^ 2
2. How to apply parallelogram rule and triangle rule to calculation? Ask for help It's better to add a few examples to analyze. Please! If you answer well, you'll get bonus points
3. As shown in the figure, it is known that AB is the diameter of ⊙ o, PA and PC are the tangents of ⊙ o, a and C are the tangent points, ∠ BAC = 30 ° (I) find the size of ∠ p; (II) if AB = 2, find the length of PA (the result retains the root sign)
4. The functional relationship between the selling price P yuan and the time t day of a commodity in the past 30 days is 1. The functional relationship between the selling price P yuan and the time t day of a commodity in the past 30 days is P={ t+20 0
5. Given the function f (x) = ax ^ 2 + 2lnx, (a belongs to R), the monotonicity of function f (x) is discussed
6. The angle between two different unit vectors a = (x1, y1,0), B = (X2, y2,0) and C = (1,1,1) is 45 degrees. Find the angle between vectors a and B Thanks for the process
7. There is a point P (x, y) in the coordinate plane. If xy = 0, then the position of point P is in the coordinate plane
8. Unit 3 in Grade 7 3、 The following sentences all have one mistake. Please draw a line under the mistake and write the correct answer on the line after the question 1.There are four peoples in my family.________ 2.Are those your friend?________ 3.That is his father friend.________ 4.This isn't her bag.It 's I bag.________ 5.-What are these?________ -These are apples.________ 6.Are they your grandparent?________ 7.-Dad,he is my friend,Tom. -Hello,Tom ________ 8.Excuse me,is that yours watch?________ 9.Mr Green is Jim father.________ 10.What's a name of his cat?________
9. Given that a and B satisfy the equations {a + 2B = 5-m, 2A + B = 7-m, what is the value of A-B?
10. 3.7.9.0 can be composed of several three digit numbers without repetition
11. As shown in the figure, given that the intersection point of graph of functions y = x + B and y = ax + 3 is p, then the solution set of inequality x + b > ax + 3 is () A. x＜1B. x＞1C. x≥1D. x≤1
12. As shown in the figure, we know that the side length of the square ABCD is 1, P is the midpoint of the side of CD, and the point q is on the line BC, when BQ = 1___ Triangle ADP is similar to triangle QCP
13. Given the set a = {(x, y) / / X / + / Y / ≤ 1} B = {x, y) / X & # 178; + Y & # 178; ≤ 1}, what is the relationship between a and B
14. The distance from a point O to a vertex in an equilateral triangle ABC is 3, 4 and 5 respectively
15. Given x = log (2a) a, y = log (3a) 2a, prove 2 ^ 1-xy = 3 ^ y-xy. (PS: () is the base)
16. If the perimeter of RT △ ABC is 24 and the median length on its hypotenuse is 5, then the area of RT △ ABC is______ ．
17. Vector inner product operation | a | = 3. | B | = 4 = 60 ° to find (a + 2b). (a-b)
18. In tetrahedral oabc, if edges OA, OB and OC are perpendicular to each other, and OA = 1, OB = 2, OC = 3, G is the center of gravity of triangle ABC, then the vector og * (OA + ob + OC) is?
19. Given the vector a = (1, K) and the vector b = (9, K-5), if a is parallel to B, then the real number k is equal to?
20. As shown in the figure, ∠ ABC = 30 ° in △ ABC, take BC and AC as sides, make equilateral △ BCD and equilateral △ ace, connect be, and prove AB square + BC square = be square Such as the title