Questions on Geometry: Proofs in Geometry answered by real tutors!

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Question 1148445: Given: Triangle ABC is isosceles and segment CD bisects angle ACB. Prove; D is the midpoint of segment AB

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Question 1148460: https://answers.yahoo.com/question/index?qid=20191108174016AADmMjW&guccounter=1&guce_referrer=aHR0cHM6Ly9hbnN3ZXJzLnlhaG9vLmNvbS9hY3Rpdml0eS9xdWVzdGlvbnM_c2hvdz03
I uploaded my question and picture for an indirect proof
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Question 1148714: Given: B is between A and D;C is between A and D
Prove: AB+BD=AC+CD
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Question 1148981: For indirect proofs, how can I prove that point O lies on line AD with the givens: Circle O with AB congruent to AC, and line AD is the median to BC with the usage of equidistance theorems? I realized that triangle ADB and ABC are congruent by the SSS postulate, that I may need to draw lines OB and OC, and AD would be a perpendicular bisector of BC. However, I am not certain on how I can use this or if my assumptions are even accurate.
Click here to see answer by greenestamps(13195)

Question 1149064: Given:
Coordinates of △DEA, H is the midpoint
of DA, G is the midpoint of EA.
Prove: DG≅EH
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Question 1149141: Given: Line OF bisects angle WOL, ANGLE W ~= ANGLE L
pROVE F is the midpoint line WL
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Question 1148913: B is between A and C; D is between C and E; and C is the midpoint of BD and AE. Prove: AB is congruent to DE

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Question 1148913: B is between A and C; D is between C and E; and C is the midpoint of BD and AE. Prove: AB is congruent to DE

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Question 1149557: Prove this theorem:

Given:
BE = CD
BE bisects angle ABC,
CD bisects angle ACB
To prove:
Triangle ABC is isosceles.
Thank you.

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Question 1149779: Given
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Question 1149816: how to prove triangle DEF is congruent to triangle DEC
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Question 1149829: Two parallel lines, a and b, are cut by a transversal c as shown. Complete the proof that angle 1 is congruent to angle 7. Provide reasons for the proof.
Statements Reasons
1. a||b 1. Given
2. 2.
3. 3.
4. Angle 1 ≅ Angle 7 4.

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Question 1149814:
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Question 1149928: two parallel lines, a and b, are cut by a transversal c as shown
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Question 1150216: Find the distance between two parallel lines having the following equations: y=3/8x+4 y=3/8x-5
Click here to see answer by Edwin McCravy(20054)

Question 1150216: Find the distance between two parallel lines having the following equations: y=3/8x+4 y=3/8x-5
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Question 1150439: Cos a + 20= sin a find a
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Question 1150439: Cos a + 20= sin a find a
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Question 1150503: Given: BD is congruent to DE, CD is congruent to DF
Prove BC is congruent to EF
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Question 1150451: You have two traingles that look like a bow and a trianle under it.
Point C is the midpoint of both seg. AE and seg. DE, the ends of the bow.
seg AB= x+1
seg AE= x^2 - 8
seg DE= x^2 -x-7
seg BD= x+5
Is seg. BD congruent to seg AE?
Explain your awnser using geometric reasoning and support it with algebra.

Click here to see answer by ikleyn(52754)

Question 1150637: In a word processing document or on a separate piece of paper, use the guide to construct a two column proof proving
AC > EF given BC = EF Submit the entire proof to your instructor,
Given:
BC = EF
Prove:
AC > EF

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Question 1150104: Two parallel lines, A and B, are cut by transversal C as shown.
Complete the proof that ∠1 ≅ ∠7
In the following image you will find a drag-and-drop of phrases used to complete the chart.
Image is displayed here:
https://imgur.com/a/kNLhwdf
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Question 1150941: PQ:RS=
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Question 1150961: Prove that given:

then

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Question 1150961: Prove that given:

then

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Question 1150959: https://answers.yahoo.com/question/index?qid=20200106160029AA0Yv3E

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Question 1150974: https://answers.yahoo.com/question/index?qid=20200106160202AAZbtvF

I need help with a 2 column proof
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Question 1151003: https://answers.yahoo.com/question/index?qid=20200106224423AA5p7IL
Need help with a 2 column proof
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Question 1150960: Given: DB is not congruent to AC
To prove: AB and CD do not bisect each other.

Click here to see answer by Edwin McCravy(20054)

Question 1150963: I need a 2 column proof help
https://answers.yahoo.com/question/index?qid=20200106160202AAZbtvF
Click here to see answer by Edwin McCravy(20054)

Question 1151716: Prove:
AB ∥ DE
m∠A = m∠_ by reason ____ (reasons are in photo 2)
m∠ACB = m∠___ by reason ____ (read above)
photo 1: https://imgur.com/a/lgsZm6H
photo 2: https://imgur.com/a/qMYYPHC
Click here to see answer by MathLover1(20849)

Question 1151815: Solve for the general solution with exact answers
2cos^2(x)-3cos(x)=-1
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Question 1151814: Sec(x)-cos(x)=sin(x)tan(x)
Prove
Thank you!
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Question 1151814: Sec(x)-cos(x)=sin(x)tan(x)
Prove
Thank you!
Click here to see answer by greenestamps(13195)

Question 1151809: using truth tables, decide if each argument is valid.
p ∨ ∼q
∼q → p
∴ p

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Question 1151813: Prove
sin(4x)=8sin(x)cos^3(x)-4sin(x)cos(x)
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Question 1152016: Can you prove the following identity algebraically.
Sec x — cos x = sin x tan x
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Question 1152032: the vertices of parallelogram ABCD are A(-5,-2) B(-2, 4) C(4,2) D(1, -4)
find the slope of each side of parallelogram ABCD
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Question 1152120: given: line segment sv bisects prove: m<1=m<2
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Question 1152198: Let ABCD be an isosceles trapezoid, with bases AB and CD. A circle is inscribed in the trapezoid. (In other words, the circle is tangent to all the sides of the trapezoid.) The length of short base AB is 2x, and the length of long base CD is 2y. Prove that the radius of the inscribed circle is sqrt(xy).
Click here to see answer by ikleyn(52754)

Question 1152672: Fill in the truth table for ~p V q
p | q | ~ p | ~ p V q
_|__ |____ |_________

Click here to see answer by Edwin McCravy(20054)

Question 1152672: Fill in the truth table for ~p V q
p | q | ~ p | ~ p V q
_|__ |____ |_________

Click here to see answer by jim_thompson5910(35256)

Question 1153130: given that triangle abc is an isosceles triangle with base of line segment bc and line segment bd is congruent to line segment cd, prove triangle adb is congruent to triangle adc
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Question 1153488: Select the correct answer.
In rectangle PQRS, PQ = 18, PS = 14, and PR = 22.8. Diagonals and intersect at point T. What is the length of ?
A.
7
B.
9
C.
11.4
D.
22.8
Click here to see answer by Edwin McCravy(20054)

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