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
Anna11 [10]
3 years ago
6

(I need the answer right now please) ΔA'B'C' was constructed using ΔABC and line segment EH. 2 triangles are shown. Line E H is

the line of reflection. Line segment B B prime has a midpoint at point D. Line segment A A prime has a midpoint at point F. Line segment C C prime has a midpoint at point G. For to be the line of reflection between and , which statements must be true? Select three options. BD = DB' DF = FG m∠EFA = 90° The line of reflection, EH, is the perpendicular bisector of BB', AA', and CC'. ΔABC is not congruent to ΔA'B'C'.

Mathematics
2 answers:
vekshin13 years ago
5 0

Answer:

A

Step-by-step explanation:

irina1246 [14]3 years ago
4 0

Answer:

The true statements are

1. BD = DB'

3. m∠EFA = 90°

4. The line of reflection, EH, is the perpendicular bisector of BB', AA', and

   CC'

Step-by-step explanation:

* Lets explain how to solve the problem

- Reflection is flipping an object over the line of reflection.

- The object and its image have the same shape and size, but the

  figures are in opposite directions from the line of reflection

- The objects appear as if they are mirror reflections, with right and left

  reversed

- The line of reflection is a perpendicular bisector for all lines joining

  points on the figure with their corresponding images

- Look to the attached figure for more understand

* Lets solve the problem

- ΔA'B'C' was constructed using ΔABC and line segment EH, where

 EH is the reflection line

- D is the mid-point of BB'

- F is the mid-point of AA'

- G is the mid-point of CC'

* Lets find from the answer the true statements

1. BD = DB'

∵ D is the mid point of BB'

- Point D divides BB' into two equal parts

∴ BD = DB' ⇒ <em>True</em>

2. DF = FG

- It depends on the size of the sides and angles of the triangle

∵ We can't prove that

∴ DF = FG ⇒ <em>Not true</em>

3. m∠EFA = 90°

∵ The line of reflection ⊥ the lines joining the points with their

   corresponding images

∴ EH ⊥ AA' and bisect it at F

∴ m∠EFA = 90° ⇒ <em>True</em>

4. The line of reflection, EH, is the perpendicular bisector of BB',

   AA', and CC'

- Yes the line of reflection is perpendicular bisectors of them

∴ The line of reflection, EH, is the perpendicular bisector of BB',

   AA', and CC' ⇒ <em>True</em>

5. ΔABC is not congruent to ΔA'B'C'

∵ In reflection the object and its image have the same shape and size

∴ Δ ABC is congruent to Δ A'B'C'

∴ ΔABC is not congruent to ΔA'B'C' ⇒ <em>Not true</em>

You might be interested in
Two sides of an isosceles triangle have lengths of 3 and 10. Find the length of the third side.
lora16 [44]

Answer:

The third side must be 10:  {3, 10, 10}; {10, 3, 3} is not possible.

Step-by-step explanation:

Everything depends on our understanding of "isosceles."

This term indicates that two sides of a given triangle are equal.

If two sides of an isosceles triangle have lengths of 3 and 10, then:

Either 1)  Two sides have length 10 and the third side has length 3.  This is certainly possible

or

2)  sides have length 3 and the third side has length 10.  This is NOT possible, since 3 + 3 adds up to 6, which is less than 10.

8 0
3 years ago
b)suppose only 1 in every 1,000 stars in the observable universe has a planetary system. how many planetary system are there? Fi
rosijanka [135]

Answer:

Please read below :)

Step-by-step explanation:

so you have 1 in a 1000, or 1/1000. But you're missing a part of the answer. If you post the whole answer I can give you the correct answer :)

5 0
2 years ago
Yesny had $240 to spend on five pairs of jeans. How much did each pair of
krek1111 [17]

Answer:

5x + 10 = 240

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Solve the expression (7th grade math):<br><br> -0.8m+3-12.5m+95.36m
Lana71 [14]

Step-by-step explanation:

<u>Combine Like-Terms:</u>

-0.8m + 3 - 12.5m + 95.36m

-13.3m + 3 + 95.36m

82.06m + 3

82.06m + 3 is your simplified expression.

7 0
2 years ago
Suprise!<br> suprise!<br> suprise!<br> suprise!<br> suprise!
Korvikt [17]
Heyyyyy thanksssss I like this surprise lolzzz
4 0
2 years ago
Read 2 more answers
Other questions:
  • Solve x - 3 &lt; -1. Graph the solution.
    13·1 answer
  • Simplify 63 7/8- 55 3/4
    6·1 answer
  • In a certain year the price of gasoline rose by 20% during January, fell by 20% during February, rose by 25% in March, and fell
    11·1 answer
  • Write an expression for the area of the triangle. Simplify the expression.
    9·1 answer
  • Solution to 3x-7y=19​
    5·1 answer
  • What is the quotient of 56,700 ÷ 15?<br> A 3,780<br> B 3,840<br> C 4,780<br> D 4,840
    5·1 answer
  • Please help again! Same thing!
    15·1 answer
  • Five people ​(Aaron ​, Byron ​, Carina ​, Duncan ​, and Evelyn ​) form a​ club, Nequals ​{A, ​B, C,​ D, E}. Carina and Evelyn ar
    12·2 answers
  • Which ordered pairs could be points on a line parallel to the line that contains (3, 4) and (–2, 2)? Check all that apply.
    14·1 answer
  • 19:10.___ for the __ of man is come to ___ into __ that which was __​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!