29584611
Descripción
Fichas por Elexali Olayvar, actualizado hace más de 1 año
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Creado por Elexali Olayvar
hace más de 3 años
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| Pregunta | Respuesta |
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Point O is the center of the circle in the diagram. What is
m∠BCA?
A.
80°
B.
75°
C.
70°
D.
65°
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C. 70° |
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DG and EG are tangent to circle C and circle F. The points of tangency are A, B, D, and E. If m∠DFE = 140°, what is m∠ACB?
A.
160°
B.
140°
C.
120°
D.
110°
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B. 140 |
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In the diagram, point O is the center of the circle. If
m∠ABC = 70°, what is m∠AOC?
A.
100°
B.
110°
C.
140°
D.
130°
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C. 140° |
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In the diagram, point O is the center of the circle and AC and BD intersect at point E. If m∠AOB = 90° and
m∠COD = 16°, what is m∠CED?
A.
37°
B.
48°
C.
53°
D.
62°
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C. 53° |
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Quadrilateral BCDE is inscribed in circle A as shown. BD divides the quadrilateral into two triangles, ∆BCD and ∆BED. Which statement is true about the triangles?
A.
The angle bisectors and the perpendicular bisectors for both triangles intersect at the same point.
B.
The angle bisectors of ∆BCD intersect at the same point as those of ∆BED.
C.
The perpendicular bisectors of ∆BCD intersect at the same point as those of ∆BED.
D.
The angle bisectors of ∆BCD intersect at the same point as the perpendicular bisectors of ∆BED.
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C. The perpendicular bisectors of ∆BCD intersect at the same point as those of ∆BED. |
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The triangle in the diagram represents a mold that Anna uses to shape dough before baking. Anna also has a circular mold whose rim just fits inside the rim of the triangular mold.
The radius of the circular mold is approximately
___ cm.
a. 5.35
b. 9.62
c.. 11.35
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5.35 |
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In the diagram, P1P2 and Q1Q2 are the perpendicular bisectors AB of and BC , respectively. A1A2 and B1B2 are the angle bisectors of ∠A and ∠B, respectively. What is the center of the circumscribed circle of ∆ABC?
A.
P
B.
Q
C.
R
D.
S
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A. P |
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A |
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The figure shows an aerial view of a playground. If David runs around the field three times, he covers a distance of
___yards.
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648 |
| Points B and C lie on a circle with center O and radius r = 5 units. If the length of ARC BC is 10.91 units, what is m∠BOC in radians? Use the value π = 3.1416, and round your answer to three decimal places. A. 1.667 radians B. 2.314 radians C. 2.182 radians D. 2.921 radians | C. 2.182 radians |
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What is the area of the shaded region in the diagram? Use the value π = 3.14, and round your answer to two decimal places.
A.
19.23 square units
B.
9.81 square units
C.
1.57 square units
D.
9.42 square units
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D. 9.42 square units |
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A. 1/4 |
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