✓ 1 MARKS
MCQ
🔥 APPEARED IN 3 BOARD SETS
Three points A(0, 1, 1), B(2, 0, -1) and C(1, 0, 3) form $\Delta$ ABC. The ar ($\Delta$ ABC) is :
A
$\frac{\sqrt{53}}{2}$ sq. units
B
$\sqrt{53}$ sq. units
C
$\frac{\sqrt{11}}{2}$ sq. units
D
$\sqrt{11}$ sq. units
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2026 | Series 65-4 | Set 1 | Question 17 |
| CBSE 2026 | Series 65-4 | Set 2 | Question 15 |
| CBSE 2026 | Series 65-4 | Set 3 | Question 14 |
02 // OFFICIAL CBSE MARKING SCHEME BREAKDOWN
- Step 1: Stating the fundamental formula / law statement (+1 Mark)
- Step 2: Intermediate mathematical substitution or proof steps (+1 Mark)
- Step 3: Correct final value or conclusion with mandatory SI units (+1 Mark)