Practice Circles (3.2) - Geomerty

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9 questions

Flashcard drill
2 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.
What is a tangent line?
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Think about how it interacts with the circle.
Question 2.
How do you define the radius of a circle?
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It's a straight line from the center.
3Question 3.
What is the relationship between a tangent and a radius at the point of contact?
- They are parallel
- They intersect at a right angle
- They are perpendicular to each other
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Think about how they meet at the circle.
4Question 4.
True or False: All angles in a semicircle are acute angles.
- True
- False
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Consider the properties of angles in semicircles.
Question 5.
Given a circle with a radius of 4 cm, if a tangent is drawn from a point 7 cm away from the center, determine the length of the tangent.
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Recall the relationship between the radius, distance to the external point, and the tangent.
Question 6.
Prove that if a quadrilateral is cyclic, then the opposite angles must be supplementary.
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Visualize or draw the cyclic quadrilateral, marking its angles clearly.

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