1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
omeli [17]
3 years ago
15

Given ABCD is a parallelagram diagonals AC and BD intersect at E Prove AE is congruent to CE and BE is congruent to DE

Mathematics
2 answers:
Zepler [3.9K]3 years ago
8 0

In the parallelogram ABCD, diagonals AC and BD intersect at point E.

According to the definition of parallelogram, opposite sides are equal and parallel to each other. That means, AB = DC

Now as AB and DC are parallel, so according to the property of Alternate Interior Angles, we will get:

∠EAB = ∠ECD and ∠EBA = ∠EDC

Thus , in two triangles ΔABE and ΔDCE, two angles and one side are equal. So, ΔABE and ΔDCE are congruent to each other.

That means, AE = CE and BE = DE

So, AE is congruent to CE and BE is congruent to DE

Sergio039 [100]3 years ago
8 0

1.  ABCD is a parallelogram --Given

2. AB≌CD--parallelogram side theorem

3. AB∥CD--def. of parellelogram

4. ∠ABE and ∠CDE are alt. interior angles-- def. of alt. interior angles

5.∠BAE and ∠DCE are alt. interior angles-- def. of alt. interior angles

6. ∠BAE≌∠DCE--alt. interior angles theorem

7. ∠ABE≌CDE--alt. interior angle theorm

8. ⊿BAE≌⊿DCE-- ASA

9. AE≌CE-- CPCTC

10. BE≌DE-- CPCTC

You might be interested in
Someone plzzz help me i suck at math!!!<br>​
Kay [80]

Answer:

B. y=-sin\ x-2

Step-by-step explanation:

We all suck at math... just lmk if you need more help...

5 0
3 years ago
Fill in the blanks to complete the equation: 1 3/5= blank+3/5​
Galina-37 [17]

The answer is..

1 3/5=1+3/5    

5 0
2 years ago
Distributive property for x(11+2), please????
Hitman42 [59]

Answer: 13x

Step-by-step explanation: Multiply x to 11 and 2

11x+2x=13x

6 0
1 year ago
Read 2 more answers
What is hundred-seventy as a fraction.
exis [7]
Hello,

To write 170 as a fraction ,you have to write 170 as the numerator and put it over 1 for the denominator.

After that, you now multiply numerator and denominator by 10.

170 = 170/1 (x 10) = 1700/10

The answer then is:
170 as a fraction<span> equals </span><span>1700/10
</span>
Hope this helps.

May
7 0
3 years ago
Can someone please help me with this?
vovikov84 [41]
Remember that X will always be one up or down depending on if there is a - or not (if it is just an x) and one over! Hope this helps

6 0
3 years ago
Other questions:
  • What is the shortest distance from the center of an inscribed circle to the sides of a triangle?
    14·2 answers
  • Please help
    10·1 answer
  • Over summer, Jackie played video games 3 hours per day. When school begin in the fall, she was only allowed to play video games
    13·2 answers
  • Mr.Mason's height is at most 4 inches mire than twice his daughters height Mr.Mason's height is 70 inches.
    9·2 answers
  • The temperature in New Jersey is 85 degrees and climbing to 2 degrees per hour the temperature in Florida is a hundred and falli
    15·1 answer
  • Which cannot be the angle measurements of triangle ABC? OmZA = 55°, mZB = 65°, mZC = 60°
    11·2 answers
  • Mr. Florean opened an account with deposit of $5,000. The account earned 7.5% annual simple interest. He did not make any additi
    15·1 answer
  • 20 points <br><br> Evaluate the function graphically find f(-6)
    12·1 answer
  • 6. Find the area shaded.
    11·1 answer
  • Two angles are supplementary angles.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!