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Chapter 9: Triangles

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This page provides comprehensive Chapter 9: Triangles - Basic Worksheet - SJMaths. Basic level practice worksheet for Class 9 Circles.

Basic Level Worksheet

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  1. Question 1: What is a circle?
    Solution: A circle is a collection of all points in a plane which are at a fixed distance from a fixed point in the plane.
  2. Question 2: What is the fixed point in a circle called?
    Solution: The center of the circle.
  3. Question 3: What is the fixed distance from the center to any point on the circle called?
    Solution: The radius of the circle.
  4. Question 4: A line segment passing through the center of a circle and whose endpoints lie on the circle is called a?
    Solution: Diameter.
  5. Question 5: What is the relationship between the diameter and radius of a circle?
    Solution: Diameter = 2 x Radius.
  6. Question 6: A line that intersects a circle in two points is called a?
    Solution: Secant.
  7. Question 7: A line that touches a circle at exactly one point is called a?
    Solution: Tangent.
  8. Question 8: The longest chord of a circle is the?
    Solution: Diameter.
  9. Question 9: Equal chords of a circle are ________ from the center.
    Solution: Equidistant.
  10. Question 10: The angle in a semicircle is a?
    Solution: Right angle ($90^\circ$).
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