Geomtry

    Master this deck with 16 terms through effective study methods.

    Generated from uploaded pdf

    Created by @linda_

    What defines arc length?

    It is a portion of the circumference of a circle.

    How is arc length measured?

    In linear units, not degrees.

    What is the formula for arc length?

    Arc length = (central angle/360) * circumference.

    What is the relationship between arc measure and central angle?

    Arc measure equals the measure of its central angle.

    How do you find the area of a sector?

    Area = (central angle/360) * area of the circle.

    What happens if the central angle is 180°?

    The sector represents half of the circle's area.

    What is a segment of a circle?

    The region bounded by a chord and the arc subtended by the chord.

    How do you calculate the area of a segment?

    Area of segment = area of sector - area of triangle.

    What is the formula for the circumference of a circle?

    Circumference = 2πr.

    What is the implication of a larger radius on arc length?

    A larger radius results in a longer arc length for the same central angle.

    How do you find the central angle from arc length?

    Central angle = (arc length/circumference) * 360.

    What defines a sector?

    A region bounded by a central angle and its intercepted arc.

    What is the area of a full circle?

    Area = πr².

    How does the area of a sector compare to the area of a circle?

    The area of a sector is proportional to its central angle.

    What is the effect of increasing the central angle on the area of a sector?

    It increases the area of the sector.

    What is the formula for finding arc length in terms of radius?

    Arc length = (central angle/360) * 2πr.