If area of triangle is 4 sq units with vertices (k, 0), (4, 0), (0, 2), then k is: A. 0 or 8 B. 0 or -8 C. 8 only D. 0 only Answer: A) 0 or 8 Explanation: Area = ½ |k(0−2) − 0 + 1(8−0)| = 4. |−2k + 8| = 8. So −2k + 8 = 8 (k=0) or −2k + 8 = −8 (k=8).

imo class 12 determinants

If area of triangle is 4 sq units with vertices (k, 0), (4, 0), (0, 2), then k is:

VAVidaara Admin Asked 6d ago 0 views 0 answers

If area of triangle is 4 sq units with vertices (k, 0), (4, 0), (0, 2), then k is:

Answer: A) 0 or 8

Explanation: Area = ½ |k(0−2) − 0 + 1(8−0)| = 4. |−2k + 8| = 8. So −2k + 8 = 8 (k=0) or −2k + 8 = −8 (k=8).