Question : In a $\triangle ABC$, $\angle A +\angle B=70°$ and $\angle B+\angle C=130°$.Then, the value of $\angle A$ is:
Option 1: 20°
Option 2: 50°
Option 3: 80°
Option 4: 200°
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
Correct Answer: 50°
Solution :
In a $\triangle ABC$,
$\angle A +\angle B=70°$ and $\angle B+\angle C=130°$
Now, $\angle A +\angle B+\angle C=180°$
$\therefore \angle A + 130°=180°$
⇒ $\angle A =180° - 130° = 50°$
Hence, the correct answer is 50°.
Related Questions
Know More about
Staff Selection Commission Combined High ...
Result | Eligibility | Application | Admit Card | Answer Key | Preparation Tips | Cutoff
Get Updates Brochure
Your Staff Selection Commission Combined Higher Secondary Level Exam brochure has been successfully mailed to your registered email id “”.
