In the adjoining figure, DE BC and DE/BC = 1/3 . If AD = 1.5 cm, then find the length of BD.

CBSE Class 10 Maths PYQ · Triangles · Similarity with Triangles · 2 Marks · March 2026 · Basic

Solve it yourself first — then press or tap Show Solution. Use for previous / next question.

1532 Marks · March 2026 · Basic
In the adjoining figure, $DE \parallel BC$ and
$\frac{DE}{BC} = \frac{1}{3}$.
If $AD = 1.5$ cm, then find the length of BD.
Show SolutionHide Solution
Ans. Let $BD = x$ cm
$\triangle ADE \sim \triangle ABC$ (by AA Similarity) (1/2 Mark)
$\frac{AD}{AB} = \frac{DE}{BC}$ (1/2 Mark)
$\frac{1.5}{1.5+x} = \frac{1}{3}$ (1 Mark)
$x = 3$, i.e., $BD = 3$ cm (1/2 Mark)
← Previous questionNext question →