Circles SAT practice questions
Math, Geometry and Trigonometry. 186 questions
Arc length, sector area, radians, inscribed angles and the equation of a circle in the coordinate plane.
What this skill tests
- Arc length and sector area
- Radians and degrees
- The equation (x - h)² + (y - k)² = r²
How to approach it
- 1Arc length and sector area are the same fraction of the whole circle.
- 2Complete the square to find the center and radius from an expanded equation.
- 3The equation of a circle is not on the reference sheet; memorize it.
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