Eric Nicholas K's answer to jeno's Secondary 4 A Maths Singapore question.
done
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Given answer for (iii) is clearly incorrect.
Date Posted:
5 years ago
The radius formed by (5, 8) and (12, 8) is a vertical line.
So, the chord must be horizontal with a fixed value of y = 12.
So the points of intersection are (a, 12) and (b, 12). We proceed to use Pythagoras Theorem to find the horizontal distance from (12, 8) to the circle.
So, the chord must be horizontal with a fixed value of y = 12.
So the points of intersection are (a, 12) and (b, 12). We proceed to use Pythagoras Theorem to find the horizontal distance from (12, 8) to the circle.
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