Question

The area of the triangle formed by the points $(2,2),(5,5),(6,7)$ is equal to (in square units)

• A. 9
• B. 5
• C. 10
• D. 3
• E. 14

Answer 1

Answer: (D)

Required Area
$=\frac{1}{2}[2(5-7)+5(7-2)+6(2-5)]$
$=\frac{1}{2}[-4+25-18]$
$=\frac{3}{2}squnit$