25.4k views
4 votes
Find the length of  DE if triangle ABC is congruent to triangle DEF. Side AB is 3x-6, side DE is x+8 and side EF is 2x+7.

User Janaya
by
7.8k points

2 Answers

6 votes

Answer:

6

Explanation:

User Kvark
by
7.7k points
5 votes
because ABC is congruent to triangle DEF then

AB = DE

3x - 6 = x +8
3x -x = 8 + 6
2x =14
x = 7

DE = x + 8 = 7 + 8 =15

Answer:
length of DE = 15