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# Help needed with exam question watch

1. https://crashmaths.com/wp-content/up...-D17-FINAL.pdf

For Question 6, why is AD the same length as BD?? Is it because D's the centre so the triangle is Isoceles?
2. (Original post by dont know it)
https://crashmaths.com/wp-content/up...-D17-FINAL.pdf

For Question 6, why is AD the same length as BD?? Is it because D's the centre so the triangle is Isoceles?
The centre of the circle is D, since points A and points B are on the circumference of the circle, they are therefore both radii to D, so are isosceles and the same length
3. Is there a mark scheme to this paper?
4. You'll find that you can draw a line from the centre of the circle to anywhere on the circumference and you will always get the radius. Seeing as AD and BD both represent the radius, they are equal.

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Updated: February 8, 2018
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