Practice Summary (10.4) - CIRCLES

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9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define a tangent in relation to a circle.
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Think about how a line interacts with a circle.
Question 2.
What property does a tangent hold in relation to the radius?
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Consider the angles involved.
3Question 3.
A tangent touches a circle at how many points?
- More than one
- Exactly one
- None
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Recall the definition of a tangent.
4Question 4.
True or False: A tangent can be drawn to a circle from a point located inside the circle.
- True
- False
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Think about how tangents relate to points inside the circle.
Question 5.
Prove that if two tangents are drawn from an external point to a circle, the angle formed between them is supplementary to the angle subtended at the center of the circle by the segment joining their points of contact.
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Consider using angle properties and relevant triangles.
Question 6.
Given a circle with radius 'r', find the length of a tangent from a point situated 'd' units away from the center of the circle.
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Apply the Pythagorean theorem here.

5 more questions in this section. Enroll free to practise them all.