Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
In , D lies on AB and E lies on AC such that
MATHEMATICS · Subjective · CBSE · Mathematics · Triangles · Triangles
Problem
In
Δ
A
B
C
\Delta ABC
Δ
A
B
C
, D lies on AB and E lies on AC such that
D
E
∥
B
C
DE \parallel BC
D
E
∥
B
C
. Given
A
D
=
3
cm
AD = 3\,\text{cm}
A
D
=
3
cm
,
D
B
=
6
cm
DB = 6\,\text{cm}
D
B
=
6
cm
and the area of
Δ
A
D
E
\Delta ADE
Δ
A
D
E
is
12
cm
2
12\,\text{cm}^2
12
cm
2
, find the area of the quadrilateral DECB.
Related theory
Basic Proportionality Theorem
Similarity
Areas of Similar Triangles
Triangles
Browse the problem library