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TITLE 19EDUCATION
PART 2TEXAS EDUCATION AGENCY
CHAPTER 111TEXAS ESSENTIAL KNOWLEDGE AND SKILLS FOR MATHEMATICS
SUBCHAPTER CHIGH SCHOOL
RULE §111.41Geometry, Adopted 2012 (One Credit)

    (A) apply the formula for the area of regular polygons to solve problems using appropriate units of measure;

    (B) determine the area of composite two-dimensional figures comprised of a combination of triangles, parallelograms, trapezoids, kites, regular polygons, or sectors of circles to solve problems using appropriate units of measure;

    (C) apply the formulas for the total and lateral surface area of three-dimensional figures, including prisms, pyramids, cones, cylinders, spheres, and composite figures, to solve problems using appropriate units of measure; and

    (D) apply the formulas for the volume of three-dimensional figures, including prisms, pyramids, cones, cylinders, spheres, and composite figures, to solve problems using appropriate units of measure.

  (12) Circles. The student uses the process skills to understand geometric relationships and apply theorems and equations about circles. The student is expected to:

    (A) apply theorems about circles, including relationships among angles, radii, chords, tangents, and secants, to solve non-contextual problems;

    (B) apply the proportional relationship between the measure of an arc length of a circle and the circumference of the circle to solve problems;

    (C) apply the proportional relationship between the measure of the area of a sector of a circle and the area of the circle to solve problems;

    (D) describe radian measure of an angle as the ratio of the length of an arc intercepted by a central angle and the radius of the circle; and

    (E) show that the equation of a circle with center at the origin and radius r is x2 + y2 = r2 and determine the equation for the graph of a circle with radius r and center (h, k), (x - h)2 + (y - k)2 = r2 .

  (13) Probability. The student uses the process skills to understand probability in real-world situations and how to apply independence and dependence of events. The student is expected to:

    (A) develop strategies to use permutations and combinations to solve contextual problems;

    (B) determine probabilities based on area to solve contextual problems;

    (C) identify whether two events are independent and compute the probability of the two events occurring together with or without replacement;

    (D) apply conditional probability in contextual problems; and

    (E) apply independence in contextual problems.


Source Note: The provisions of this §111.41 adopted to be effective September 10, 2012, 37 TexReg 7109

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