Question
Mathematics Question on Straight lines
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
Answer
3
Explanation
Solution
Required Area
=21[2(5−7)+5(7−2)+6(2−5)]
=21[−4+25−18]
=23sq unit