Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
In , D and E are points on the sides AB and AC respectively
MATHEMATICS · Subjective · CBSE · Mathematics · Triangles · Triangles
Problem
In
△
A
B
C
\triangle ABC
△
A
B
C
, D and E are points on the sides AB and AC respectively, such that
D
E
∥
B
C
DE \parallel BC
D
E
∥
B
C
. If
A
D
=
x
AD = x
A
D
=
x
,
D
B
=
x
−
2
DB = x - 2
D
B
=
x
−
2
,
A
E
=
x
+
2
AE = x + 2
A
E
=
x
+
2
and
E
C
=
x
−
1
EC = x - 1
E
C
=
x
−
1
, find the value of
x
x
x
.
Related theory
Basic Proportionality Theorem
Similarity
Basic Proportionality Theorem (BPT)
Triangles
Browse the problem library