Exam 12: Geometry Problems: Complementary Angles, Collinear Points, and Similar Triangles

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  -The locus of points in space that are at a distance of 1 inch from point P is the circle with center P and a radius length of 1 inch. -The locus of points in space that are at a distance of 1 inch from point P is the circle with center P and a radius length of 1 inch.

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  -What is the total number of faces for a prism whose base is a decagon? -What is the total number of faces for a prism whose base is a decagon?

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  -Where B is the area of the base and h is the length of altitude, the volume of a prism and cylinder can both be found by the formula V = Bh. -Where B is the area of the base and h is the length of altitude, the volume of a prism and cylinder can both be found by the formula V = Bh.

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  -For a quadrilateral to be a rectangle, how must the diagonals be related? -For a quadrilateral to be a rectangle, how must the diagonals be related?

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  -If M and N are the midpoints of nonparallel sides   and   of trapezoid HJKL, then   . -If M and N are the midpoints of nonparallel sides   -If M and N are the midpoints of nonparallel sides   and   of trapezoid HJKL, then   . and   -If M and N are the midpoints of nonparallel sides   and   of trapezoid HJKL, then   . of trapezoid HJKL, then   -If M and N are the midpoints of nonparallel sides   and   of trapezoid HJKL, then   . .

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To construct the midpoint of the horizontal line segment To construct the midpoint of the horizontal line segment   , begin by marking off arcs of equal length from points A and B so that the arcs intersect both above and below   . , begin by marking off arcs of equal length from points A and B so that the arcs intersect both above and below To construct the midpoint of the horizontal line segment   , begin by marking off arcs of equal length from points A and B so that the arcs intersect both above and below   . .

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When two secants intersect at a point in the exterior of a circle, the measure of the angle formed is one-half the positive difference of the measures of the two intercepted arcs.

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Given that 1 foot = 12 inches, what is the number of square inches in 1 square foot?

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  -In the figure,   is said to be circumscribed about the circle. -In the figure,   -In the figure,   is said to be circumscribed about the circle. is said to be circumscribed about the circle.

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For a regular pentagon, find the measure of each central angle.

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  -In the isosceles triangle shown, the legs are 10 inches each while m   = 40°. Find the length of base   correct to the nearest tenth of an inch. -In the isosceles triangle shown, the legs are 10 inches each while m   -In the isosceles triangle shown, the legs are 10 inches each while m   = 40°. Find the length of base   correct to the nearest tenth of an inch. = 40°. Find the length of base   -In the isosceles triangle shown, the legs are 10 inches each while m   = 40°. Find the length of base   correct to the nearest tenth of an inch. correct to the nearest tenth of an inch.

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  -Suppose that   . Which must be true? -Suppose that   -Suppose that   . Which must be true? . Which must be true?

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For what type of regular polygon does the apothem have a length equal to one-half the length of a side of the polygon?

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In the form In the form   , find the equation of the line that is the perpendicular- bisector of the line segment that joins (0,0) and (2a,2b). , find the equation of the line that is the perpendicular- bisector of the line segment that joins (0,0) and (2a,2b).

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  -The locus of points in a plane that are equidistant from the sides of   is the bisector of   . -The locus of points in a plane that are equidistant from the sides of   -The locus of points in a plane that are equidistant from the sides of   is the bisector of   . is the bisector of   -The locus of points in a plane that are equidistant from the sides of   is the bisector of   . .

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  -In a right triangle, the measures of the angles are   ,   , and   = 90°. With the lengths of the opposite sides being a, b, and c respectively, find tan   . -In a right triangle, the measures of the angles are   -In a right triangle, the measures of the angles are   ,   , and   = 90°. With the lengths of the opposite sides being a, b, and c respectively, find tan   . ,   -In a right triangle, the measures of the angles are   ,   , and   = 90°. With the lengths of the opposite sides being a, b, and c respectively, find tan   . , and   -In a right triangle, the measures of the angles are   ,   , and   = 90°. With the lengths of the opposite sides being a, b, and c respectively, find tan   . = 90°. With the lengths of the opposite sides being a, b, and c respectively, find tan   -In a right triangle, the measures of the angles are   ,   , and   = 90°. With the lengths of the opposite sides being a, b, and c respectively, find tan   . .

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  -In   , m   = 138°. Find m   . -In   -In   , m   = 138°. Find m   . , m   -In   , m   = 138°. Find m   . = 138°. Find m   -In   , m   = 138°. Find m   . .

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Find the length of base in an isosceles triangle with perimeter 25 inches and length of leg 8 inches.

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  -When the midpoints of the sides of a square RSTV are joined in order, quadrilateral MNPQ is formed. Being as specific as possible, what type of quadrilateral is MNPQ? -When the midpoints of the sides of a square RSTV are joined in order, quadrilateral MNPQ is formed. Being as specific as possible, what type of quadrilateral is MNPQ?

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  -In the circle shown, m   =   (m     m   ). -In the circle shown, m   -In the circle shown, m   =   (m     m   ). =   -In the circle shown, m   =   (m     m   ). (m   -In the circle shown, m   =   (m     m   ).   -In the circle shown, m   =   (m     m   ). m   -In the circle shown, m   =   (m     m   ). ).

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