• A. $\frac{১}{২}\times$ভূমি × উচ্চতা
• B. $\frac{১}{২}\times$কর্ণদ্বয়ের গুণফল
• C. $\frac{১}{২}\times$(কর্ণদ্বয়ের যোগফল)
• D. দৈর্ঘ্য × প্রস্থ

Answer: Option B

Explanation:

• A. $N^2$
• B. 2N+1
• C. N
• D. 2N-1

Answer: Option A

Explanation:

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

Answer: Option A

Explanation:

• A. $\frac{১}{২}$
• B. $\frac{১}{৩}$
• C. $\frac{৩}{৪}$
• D. ১ বার

Answer: Option C

Explanation:

• A. ২৫%
• B. $৩৩\frac{১}{৩}\%$
• C. ৫০%
• D. $৬৬\frac{২}{৩}\%$

Answer: Option B

Explanation:

• A. $\frac{3}{5}$
• B. $\frac{2}{7}$
• C. $\frac{1}{3}$
• D. $\frac{1}{2}$

Answer: Option A

Explanation:

• A. $\frac{১}{৩}$
• B. $\frac{৩}{৭}$
• C. $\frac{২}{৫}$
• D. $\frac{৪}{৯}$

Answer: Option A

Explanation:

• A. $\frac{5}{27}$
• B. $\frac{7}{36}$
• C. $\frac{11}{45}$
• D. $\frac{2}{9}$

Answer: Option A

Explanation:

• A. ২০
• B. $২০\sqrt{২}$
• C. $২০\sqrt{৩}$
• D. ৪০০

Answer: Option C

Explanation:

• A. $6\sqrt{2}$
• B. $6\sqrt{3}$
• C. $9\sqrt{2}$
• D. $9\sqrt{3}$

Answer: Option C

Explanation:

• A. $\frac{১}{৪}$ অংশ
• B. $\frac{৩}{৪}$ অংশ
• C. $\frac{১}{৩}$ অংশ
• D. $\frac{২}{৩}$ অংশ

Answer: Option C

Explanation:

• A. ১২ দিনে
• B. ১০ দিনে
• C. $৪\frac{৩}{৪}$দিনে
• D. $১১\frac{১}{৪}$দিনে

Answer: Option D

Explanation:

• A. $\frac{\mathrm{১}}{\mathrm{২}}$
• B. $\frac{\mathrm{১}}{\mathrm{৪}}$
• C. $\frac{\mathrm{১}}{\mathrm{৩}}$
• D. $\frac{\mathrm{১}}{\mathrm{৫}}$

Answer: Option B

Explanation:

• A. $\pi r$
• B. $\pi r^2$
• C. $\pi r^3$
• D. $2r$

Answer: Option B

Explanation:

• A. V = 4 πrh
• B. $V={\mathrm{\pi r}}^2\mathrm{h}$
• C. V = 4 πrh
• D. $V=2{\mathrm{\pi r}}^2\mathrm{h}$

Answer: Option B

Explanation: