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
chubhunter [2.5K]
4 years ago
7

Prove ABC~EDC ?

Mathematics
1 answer:
erastova [34]4 years ago
8 0

Answer:

AA similarity theorem

Step-by-step explanation:

we know that

<u>AA (Angle-Angle) Similarity</u> states that  In two triangles, if two pairs of corresponding angles are congruent, then the triangles are similar

In this problem we have that

∠BCA=∠ECD ----> by vertical angles

∠BAC=∠DEC ---> because AB is parallel to ED (alternate interior angles)

therefore

Triangles ABC and EDC are similar by AA similarity theorem

You might be interested in
What angle relationship Describes angles CBE and DEB? I need answered back quick​
Leona [35]

same-side interior angles

5 0
3 years ago
7 - 12c = 43 show work and check plz
Svetradugi [14.3K]
The answer is -3

-12c = 43 - 7
-12c = 36
÷ -12 ÷-12
c = -3
4 0
3 years ago
63. What is the equation in point-slope form
viktelen [127]

Answer:

y-3=4(x-10)

Step-by-step explanation:

Point Slope Form: y-y1=m(x-x1)

Where m=slope and (x1, y1) is a point on the line.

m=(y2-y1)/(x2-x1)=(11-3)/(12-10)=8/2=4

So the slope is 4,

y-3=4(x-10)

6 0
4 years ago
Use the properties of 30-60-90 and 45-45-90 triangles to solve for x in each of the problems below. Then decode the secret messa
Flauer [41]

With the help of trigonometric function, the above problems have been calculated. See explanation below.

<h3>What are Trigonometric functions?</h3>

The term "trigonometric function" refers to functions that are periodic in nature and that shed light on how a right-angled triangle's angles and sides relate to one another.

The solutions to x in the respective problems is given as follows:

1) x = 5 /Sin(30°)

x = 10

!) Sin(45°) = 4/x

x = 4/sin(45°)

x = 4√2

I) Cos(45°) = √3 / x

x = √3 / Cos(45°)

x = √6

E) Tan(60°)

= (3√3) / x

x = (3√3) / 3

W) In trigonometry, every right-triangle that is isosceles in nature, the angle made by the legs and the hypotenuse will always equal 45°.

x = 45°

N) x² + x² = (7√2)²

x = 7

V) Tan(60°) = 7 / x

x = 7√3/3

K) x² + x² = (9)²

x = 9/√2

Y) Sin(60°) = 7√3/x

x = 14

M) Sin(30°) = x/11

x = 11/2

T) Sin(45°) = x/√10

x = √5

A) x + 2x + 90° = 180°

x = 30°

O) Sin(45°) = √2 / x

x = 2

R) Tan(30°) = x / 4

x = 4/√3

= 4√3 / 3

S) Sin(60°) = x / (10/3)

x = (5√3) / 3

Learn more about Trigonometric functions at:

brainly.com/question/14421002

#SPJ1

3 0
2 years ago
If p is the original price of a car, which equation best represents the situation
slava [35]

Answer:

p - 3000 = 16000

Step-by-step explanation:

none of the options given are correct

3 0
3 years ago
Other questions:
  • Find the distance between points P(8, 2) and Q(3, 8) to the nearest tenth.
    12·1 answer
  • What is the 3/4 yard long and 1/4 yard wide
    15·1 answer
  • M+4=17 May you guys please help me?
    10·1 answer
  • Employees earn vacation pay at the rate of one day per month. during the month of july, 34 employees qualify for one vacation da
    8·1 answer
  • I just want to know I I did this math problem correctly and if so or not please explain why
    6·1 answer
  • What would be a common denominator for the difference of
    5·1 answer
  • a transversal running across two parallel lines, forming two angles. One measure 80°. How large is the other angle
    10·1 answer
  • What is the percent increase of 10 to 24?
    9·2 answers
  • A theater sells out all 1200 seats for a performance at $13 per ticket. the theater's total revenue that night is
    15·1 answer
  • X/2 + 4 &lt; 18
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!