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
fomenos
3 years ago
8

Use a two-column proof to prove the Triangle Proportionality Theorem:

Mathematics
1 answer:
photoshop1234 [79]3 years ago
4 0

Answer:

Step-by-step explanation:

From the picture attached,

                 Statements                                        Reasons

1). In ΔABC, DE intersects AB and AC  1). Given

2). DE║BC                                              2). Given

3). ∠ADE ≅ ABC                                    3). Corresponding angles postulate

4). ∠AED ≅ ∠ACB                                 4). Corresponding angles postulate

5). ΔADE ~ ΔABC                                  5). AA similarity postulate

6). \frac{AD}{AB}=\frac{AE}{AC}                                           6). Definition of two similar triangles

Hence proved.  

You might be interested in
What is the correct Algebraic Inequality for the given graph?<br>plsss help​
Anna71 [15]

Answer:

X < 9

The hallow circle means just greater than or less than

The numberline is pointing downwards showing that 9 is greater than x(unknown value)

The point is also on 9

6 0
2 years ago
The range of which function is (2,infinity)
sergeinik [125]
I don't have any pictures of graphs but a function that has a range of (2, infinity) means that hte lowers point (lowest y-value) is 2, and the height function keeps increasing (the y-value keeps increasing) to infinity.
5 0
3 years ago
Read 2 more answers
15 divided by negative 12
meriva

Answer:

-5/4 or -1.25

Step-by-step explanation:

we use the long division method to find the answer goodluck

8 0
2 years ago
Lines AB and CD are straight lines. Find x and y. Give reasons to justify your solutions. I need both answers.
Kazeer [188]

Answer:

1) x = 14°, y = 5°

2) x = 18.5°, y = 37°

Step-by-step explanation:

1) ∠AOC and ∠BOD are vertical angles, then ∠BOD = 25°

∠MOD = ∠MOB + ∠BOD = 90°

3x + 23° + 25° = 90°

3x = 90° - 23° - 25°

x = 42°/3

x = 14°

∠LOB = ∠LOM + ∠MOB = 90°

5y + 3x + 23° = 90°

5y = 90° - 23° - 3(14°)

y = 25°/5

y = 5°

2) ∠AOC and ∠BOD are vertical angles, then ∠BOD = 16°

∠EOB = ∠EOD + ∠DOB =  90°

2y + 16° = 90°

y = (90° - 16°)/2

y = 37°

∠DOF = ∠BOF + ∠DOB =  90°

4x + 16° = 90°

x = (90° - 16°)/4

x = 18.5°

4 0
2 years ago
Can someone help? exams are tomorrow and i have no clue how to do this problem?
cluponka [151]
Hi i don’t really know the answer but i just wanted to say good luck on ur exams and you will do great!!
5 0
2 years ago
Other questions:
  • Is it A , B , C or D ??
    13·2 answers
  • before a renovation, a movie theater had 149 seats. After the renovation, the theater had 180 seats. what is the approximate per
    9·1 answer
  • What are the solutions of the equation x^2+4x+4=25
    11·1 answer
  • Hi people if someone gives me a hint please. Show algebraically that the product of two consecutive numbers is always even l wro
    8·1 answer
  • What’s the domain of f(x)= x-4/x^2+5x-36
    7·1 answer
  • What is the domain of the function s=-4r^2 if the range is s &lt;_ 0
    11·1 answer
  • Which statement is true about
    14·1 answer
  • James earns 20 allowance every month and 30 for each a on his report card
    11·1 answer
  • 3 1/10s = 6 1/5<br> solve the equation
    15·1 answer
  • I need it done asap please help before 12:00
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!