• A. $16$
• B. $169$
• C. $13$
• D. $14$

Answer: Option C

Explanation:

• A. $\frac{4}{3}{\mathrm{\pi r}}^3$
• B. $\frac{3}{4}{\mathrm{\pi r}}^3$
• C. $\frac{3}{4}{\mathrm{\pi }}^3\mathrm{r}$
• D. $\frac{3}{4}\mathrm{\pi r}$

Answer: Option A

Explanation:

• A. 15 meter
• B. 21 meter
• C. 26 meter
• D. 31 meter

Answer: Option B

Explanation:

• A. 90°
• B. 120°
• C. 150°
• D. 180°

Answer: Option B

Explanation:

• A. $\frac{n}{\sqrt{2-1}}$
• B. $\frac{n}{\sqrt{2+1}}$
• C. $\frac{\sqrt{2}}{n+1}$
• D. $\frac{\sqrt{2+1}}{n}$

Answer: Option A

Explanation:

• A. $৩০°$
• B. $৪০°$
• C. $২০°$
• D. $২৫°$

Answer: Option C

Explanation:

• A. বৃত্ত
• B. প্যারাবোলা
• C. উপবৃত্ত
• D. গোলক

Answer: Option A

Explanation:

• A. $36m^2$
• B. $42m^2$
• C. $48m^2$
• D. $50m^2$

Answer: Option C

Explanation:

• A. $r=x\left(1\pm \sqrt{2}\right)$

Answer: Option A

Explanation:

• A. $\frac{\sqrt{3}}{2}a$
• B. $\frac{\sqrt{3}}{2}{a}^2$
• C. $\frac{\sqrt{3}}{4}a$
• D. $\frac{\sqrt{3}}{1}{a}^2$

Answer: Option C

Explanation:

• A. ৩৬ ইঞ্চি
• B. ৩৬ বর্গ ইঞ্চি
• C. ৩ ফুট
• D. ৩ বর্গফুট

Answer: Option B

Explanation:

• A. ১/২(দৈর্ঘ্য × উচ্চতা)
• B. দৈর্ঘ্য × প্রন্থ
• C. ২(দৈর্ঘ্য × প্রস্থ)
• D. ভূমি × উচ্চতা

Answer: Option D

Explanation:

• A. $2$
• B. $\frac{\sqrt{3}}{2}$
• C. $\frac{1}{2}$
• D. $\frac{1}{\sqrt{2}}$

Answer: Option C

Explanation:

• A. $৩\sqrt{৩}$
• B. $৬৪\sqrt{৩}$
• C. $৬৪$
• D. $৩২$

Answer: Option B

Explanation:

• A. 12
• B. 36
• C. 48
• D. 144

Answer: Option D

Explanation: