2. In the following diagram which is not drawn to scale, why can't both AB and AC be perpendicular to BC ?

if they are both perpendicular to BC, then they must be parallel. Since they meet at a point, then they are not parallel and hence cannot be perpendicular to BC

Step-by-step explanation:

If the two lines are perpendicular to BC, then the two lines would be parallel.

From the definition of parallel lines, we know that they are lines which travel in the same direction but do not meet.

But in this question, we can see that the lines met already at point A. That means both lines cannot be parallel and this equate to the point that they are both not parallel to the line BC

b: 1 is the final answeer! : )

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step-by-step explanation: