Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
![](https://s.yimg.com/dh/ap/social/profile/profile_b96.png)
Lv 731,514 points
?
Favorite Answers32%
Answers5,203
Prove triangle ABC is equilateral.?
Given:
Triangle ABC
D is between A and B
E is between B and C
F is between C and A
DB = EC = AF
Triangle DEF is equilateral.
Prove:
Triangle ABC is equilateral.
4 AnswersMathematics7 years agoPROVE TRIANGLE ABC IS EQUILATERAL.?
PROVE TRIANGLE ABC IS EQUILATERAL?
GIVEN:
POINTS D,E,F ON SIDES AB, BC, AC, RESPECTIVELY, OF Δ ABC
DB=EC=AF
Δ DEF IS EQUILATERAL
PROVE:
Δ ABC IS EQUILATERAL
1 AnswerMathematics1 decade agoPROVE TRIANGLE ABC IS EQUILATERAL?
GIVEN:
POINTS D,E,F ON SIDES AB, BC, AC, RESPECTIVELY, OF Δ ABC
DB=EC=AF
Δ DEF IS EQUILATERAL
PROVE:
Δ ABC IS EQUILATERAL
2 AnswersMathematics1 decade ago