Which of the following lines (line segments) are concurrent?
A. angle-bisectors of a rectangle
B. perpendicular-bisectors of the sides of a rhombus
C. angle-bisectors of a trapezoid
D. angle-bisectors of a kite
Answer: D
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One of the values r (radius), d (diameter), C (circumference), or A (area) is given for a particular circle. Find the indicated value. Leave ? in your answer.C = 40? cm; r = ?
A. 20? cm B. 80 cm C. 40 cm D. 20 cm
Find the center (h, k) and radius r of the circle with the given equation. x2 + y2 - 14x - 10y = -25
A. (h, k) = (-7, -5); r = 49 B. (h, k) = (-5, -7); r = 49 C. (h, k) = (5, 7); r = 7 D. (h, k) = (7, 5); r = 7
Solve the problem.Bob fenced in a rectangular garden in his yard. The length of the rectangle is 5 ft longer than the width and the perimeter is 66 ft. What is the width of the rectangle?
A. 16 ft B. 28 ft C. 13 ft D. 14 ft
Write the expression as a pure imaginary number.
A. ±13
B. 13i
C. -13i
D. -
i