Search the courses, subjects, tracks, games and features, or jump straight to a page.
2 cards from this section. Quick, good the night before a test.
What is a circle?
Think about the definition involving distance.
How many points does a tangent touch on a circle?
Recall the special relationship of tangents.
How many tangents can a circle have from an external point?
Think about the positioning relative to the circle.
A line intersects a circle at two points. What is the name of this line?
Consider what happens when a line splashes through a circle.
Prove that the line segment joining the center of a circle and the point of contact of a tangent is perpendicular to the tangent.
Think about the relationship between the triangle's angles.
Two tangents are drawn from a point T to a circle with center O. If the angle ∠POQ is 60°, find ∠PTQ.
Look for properties related to angles in isosceles triangles.
5 more questions in this section. Enroll free to practise them all.
Enroll free