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
Otrada [13]
3 years ago
7

22. If triangle DEC equals about triangle BEC, which is true by CPCTC?

Mathematics
2 answers:
galben [10]3 years ago
7 0

Answer with explanation:

→Triangle DEC equals about Triangle B EC.

⇒The meaning of equal here,is that both the triangles that is,                  ΔDEC ≅ ΔB EC.

≡When Triangles are congruent,their corresponding sides and angles are equal .

Corresponding Sides which are equal by C P C TC:

1. BE = DE

2.BC =CD

3.EC, is Common.

Corresponding angles which are equal by C P C TC are:

1. ∠B EC=∠DEC

2. ∠ D CE=∠B CE

3.∠ E B C= ∠ E D C

Option A: ⇒Angle E BC equals about angle E DC

Kruka [31]3 years ago
4 0
<span>D. Line AE equals about line ED because if you measure line AE it is the same length as line ED</span>
You might be interested in
The roots of an equation are x=-1 plus or minus I the equation is x^2+ ?
Oxana [17]

Answer:

x^2+2x+2

Step-by-step explanation:

If the roots of the equation are -1\pm i, then by the zero product rule:

x=-1\pm i \\\\x+1\pm i=0 \\\\(x+1+i)(x+1-i)=0\\\\x^2+x-ix+x+1-i+ix+i+1=0 \\\\x^2+2x+2=0

You can confirm this with the quadratic equation:

x=\dfrac{-2\pm\sqrt{4-8}}{2}=\dfrac{-2\pm 4i}{2}=-1\pm i

Hope this helps!

8 0
3 years ago
What is the value of y?
Xelga [282]

Answer:

y = 54

Step-by-step explanation:

We know the sum of the angles of a triangle are 180

72+y+y = 180

Combine like terms

72 + 2y = 180

Subtract 72 from each side

72-72 +2y = 180-72

2y = 108

Divide each side by 2

2y/2 = 108/2

y = 54

7 0
3 years ago
Simplify. Consider all the cases. |7-(12-x)|
Phantasy [73]

Answer: |x-5|

Step-by-step explanation:

I dont know how to exlplain it

5 0
3 years ago
Jenn recorded the favorite school subject of students at her school. she surveyed 700 students. how many more students chose Eng
sergij07 [2.7K]
105 students chose English than science
5 0
3 years ago
Read 2 more answers
I need heelp<br> (-6)-(+8)=
zhuklara [117]

Answer:

I believe its 2 so sorry if im wrong

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • The distributive property of multiplication justifies which of the following statements?
    9·2 answers
  • What is the angle measure of 68
    10·1 answer
  • BRIA is a rectangle. AN=5. NR=x-3. please solve for x, NR, and BI
    9·1 answer
  • Help please i only have a little bit of time
    7·2 answers
  • Help I need a awnser
    12·1 answer
  • Solve the quadratic equation using the quadratic formula: 3x^2 - 6x = 5
    11·1 answer
  • Ginny factored 6x2 – 31x – 30 as shown: ac = –180 and b = 31 36(–5) = –180 and 36 + (–5) = 31 6x2 + 36x – 5x – 30 6x(x + 6) – 5(
    11·1 answer
  • Are 1/2x+3/4-5/8x-7/8 and 1/8(x+1) equivalent expressions? show your work.
    15·1 answer
  • 2. 2x2 + 24x + 13<br> How do I write the following in vertex form
    9·1 answer
  • -9(z+8)=-9z-72<br><br> Llllllll
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!