Question : If in a $\triangle$ABC, D and E are on the sides AB and AC, such that, DE is parallel to BC and $\frac{AD}{BD}$ = $\frac{3}{5}$. If AC = 4 cm, then AE is:
Option 1: 1.5 cm
Option 2: 2.0 cm
Option 3: 1.8 cm
Option 4: 2.4 cm
New: SSC CHSL tier 1 answer key 2024 out | SSC CHSL 2024 Notification PDF
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 1.5 cm
Solution : Given: $\frac{AD}{BD}$ = $\frac{3}{5}$ In $\triangle$ABC and $\triangle$DBE, $\angle$BAC = $\angle$DAE (same angle) $\angle$ADE = $\angle$ABC (corresponding angles) $\angle$AED = $\angle$ACB (corresponding angles) By AAA similarity, $\triangle$ABC ~ $\triangle$ADE ⇒ $\frac{AD}{AB}$ = $\frac{AD}{AD+BD}$ = $\frac{3}{3+5}$ = $\frac{3}{8}$ Now, $\frac{AD}{AB}$ = $\frac{AE}{AC}$ ⇒ $\frac{3}{8}$ = $\frac{AE}{4}$ [since AC = 4 cm] ⇒ AE = $\frac{3×4}{8}$ = 1.5 cm Hence, the correct answer is 1.5 cm.
Candidates can download this e-book to give a boost to thier preparation.
Result | Eligibility | Application | Admit Card | Answer Key | Preparation Tips | Cutoff
Question : In $\triangle$ABC, D and E are two points on the sides AB and AC, respectively, so that DE $\parallel$ BC and $\frac{AD}{BD}=\frac{2}{3}$. Then $\frac{\text{Area of trapezium DECB}}{\text{Area of $\triangle$ABC}}$ is equal to:
Question : In $\triangle ABC$, $D$ and $E$ are the points of sides $AB$ and $BC$ respectively such that $DE \parallel AC$ and $AD : DB = 3 : 2$. The ratio of the area of trapezium $ACED$ to that of $\triangle DBE$ is:
Question : DE is tangent to the circumcircle of $\triangle$ABC at the vertex A such that $DE \parallel BC$. If AB = 17 cm, then the length of AC is equal to:
Question : In a $\triangle ABC$, the median AD, BE, and CF meet at G, then which of the following is true?
Question : In $\triangle$ABC, BD and CE are perpendicular to AC and AB respectively. If BD = CE, then $\triangle$ABC is:
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile