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
Find the inverse of y=1/2x+6. Show steps
soldi70 [24.7K]

Answer:

y = 2x - 12

Step-by-step explanation:

To find the inverse of a function, you switch x and y and solve for y.

x = 1/2 y + 6                 switch x and y

x - 6 = 1/2 y                  subtract 6 from both sides

2x - 12 = y                    multiply both sides by 2

7 0
3 years ago
What is -3/4 multiplied by -1 1/5
MrRa [10]
The answer to this will be a positive multiply 3 and 11 you'll get 33 and multiply 4 and 5 and you'll get 20

33/20
4 0
3 years ago
Read 2 more answers
Write 2 9/10 as an improper fraction.<br><br>pls hurry!<br>and pls explain how to do it
stellarik [79]

Answer:

29/10

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Chinese checkers is a game in which players move their pieces across a board using single moves or jumps like the traditional ga
DENIUS [597]
A. it is a hexagon (there are 6 sides) B. using the equation (n-2)180 (where n is the number of sides we get (6-2)180=4*180=720. divide 720 by 6 to get 120 for each angle of the hexagon. (it has no irregularities in it's shape so that number will be correct for them all.) C. to get that just divide 39 by 6 to get 6.5 in per side. Hope that helps:) 
6 0
4 years ago
Tan9°. tan27°. tan45°. tan72°. tan81°= 1​<br><br>could u plz solve it with clear process
Inga [223]

<u>Correct</u><u> </u><u>question</u><u>:</u><u>-</u>

<u>Prove </u><u>that </u><u>tan9.</u><u>t</u><u>a</u><u>n</u><u>1</u><u>7</u><u>.</u><u>t</u><u>a</u><u>n</u><u>4</u><u>5</u><u>.</u><u>t</u><u>a</u><u>n</u><u>7</u><u>3</u><u>.</u><u>t</u><u>a</u><u>n</u><u>8</u><u>1</u><u>=</u><u>1</u>

<u>LHS</u>

\\ \sf\longmapsto tan9.tan17.tan45.tan73.tan81

\\ \sf\longmapsto tan9.tan81.tan17.tan73.tan45

\\ \sf\longmapsto tan(90-81).tan81.tan(90-73).tan73.1

\\ \sf\longmapsto cot81.tan81.cot73.tan73

\\ \sf\longmapsto 1.1

\\ \sf\longmapsto 1

5 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the equations below could be the equation of this parabola?
    8·1 answer
  • A dining set is priced at $785. If the sales tax is 7 percent, what is the cost to purchase the dining set? Round to the nearest
    14·2 answers
  • Give me a fraction that equals 80% the starts with 3/x
    13·1 answer
  • The sum of 2 consecutive odd integers is 52. If x represents the smaller integer, then the larger integer is
    15·2 answers
  • In a survey 9 out of 15 students named math as there favorite class. express this rate as a decimal
    15·2 answers
  • Consider the function below. f(x)= x^3 + 2x^2 - x - 2 plot the x and y intercepts of the function
    15·2 answers
  • E U F {2,4,6,8,} true or false
    5·1 answer
  • How is the graph of y = - 4x2 – 5 different from the graph of y = -4x2?
    12·1 answer
  • Turning 2 7/8 into a decimal
    12·1 answer
  • PLEASE someone help its due tonight im almost done
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!