• A. 6 মিটার
• B. 9 মিটার
• C. 12 মিটার
• D. 63 মিটার

Answer: Option B

Explanation:

• A. সমবাহু
• B. সমদ্বিবাহু
• C. সমকোণী
• D. স্থূলকোণী

Answer: Option C

Explanation:

• A. $\frac{3}{4}$
• B. $\frac{1}{2}$
• C. 144
• D. $\frac{9}{16}$

Answer: Option B

Explanation:

• A. $6ax-10ay$
• B. $4x+5y$
• C. $4ax-5ay$
• D. $4x-5y$

Answer: Option D

Explanation:

• A. 64
• B. 56
• C. 48
• D. 42

Answer: Option A

Explanation:

• B. 1
• C. 225
• D. $\frac{1}{225}$

Answer: Option C

Explanation:

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

Answer: Option A

Explanation:

• A. 3.85
• B. 3.75
• C. 3.95
• D. 3.65

Answer: Option C

Explanation:

• B. 2
• C. 3
• D. -3

Answer: Option C

Explanation:

• A. $S_{\infty }= \frac{20}{3}$
• B. $S_{\infty }= \frac{3}{20}$
• C. $S_{\infty }= 20$
• D. $S_{\infty }= 3$

Answer: Option B

Explanation:

• A. 728
• B. 286
• C. 364
• D. 1001

Answer: Option B

Explanation:

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

Answer: Option D

Explanation:

• A. $\frac{n\left(n+1\right)}{2}$
• B. $\frac{n\left(n+1\right)\left(2n+1\right)}{6}$
• C. ${\left\{\frac{n\left(n+1\right)}{2}\right\}}^2$
• D. একটিও নয়

Answer: Option C

Explanation:

• A. 3
• B. 4
• C. 5
• D. 6

Answer: Option D

Explanation:

• A. $\frac{1}{2}\left(x-4\right)\left(x+2\right)$
• B. $\frac{1}{2}\left(x+4\right)\left(x-2\right)$
• C. $\frac{1}{2}\left(x+4\right)\left(x+2\right)$
• D. $\frac{1}{2}\left(x-4\right)\left(x-2\right)$

Answer: Option D

Explanation: