The vertices of (A) and (B) are ((-3,8)) and ((7,2)). The line (BC) is parallel to the (x)-axis. The

Question

The vertices of (A) and (B) are ((-3,8)) and ((7,2)). The line (BC) is parallel to the (x)-axis. The area of triangle (ABC) is 12 square units. - Find the coordinates of (C). - Find the exact value of (cosangle ACB).

Accepted Answer

(a) $(3,2)$ (b) $-\frac{\sqrt2}{2}$

2025 CHS PRELIMS P1 Q13

2025 CHS PRELIMS P1 Q13

Solution:

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