f2-quiz-20090119-geometry

# f2-quiz-20090119-geometry - y D 90 °-x y 4 If the sum of...

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F.2 Mathematics Quiz (Simple Geometry) Name:_________________ F.2____ (     ) 2009-01-19 wzDescription\\Dept_server\Mac_PC\to_chu_ka_ching\F2 TCD TB MC\10\10_034.jpgpWrapPolygonVertices8;5;(-180,0);(-180,21196);(21594,21196); (21594,0);(- 180,0)dhgt251654144fLayoutInCell1fAllowOverlap1fBehindDocument0fHidden0fPseudoInl ine0fLayoutInCell1 Write your answers in the boxes provided. 1. In the figure, x = A. 20 °. B. 30 °. C. 40 °. D. 50 °. wzDescription\\Dept_server\Mac_PC\to_chu_ka_ching\F2 TCD TB MC\10\10_037.jpgdhgt251655168fLayoutInCell1fAllowOverlap1fBehindDocument0fHidden0fPse udoInline0fLayoutInCell1 2. In the figure, AB // CD, a - b = = A. 90 °. B. 120 °. C. 180 °. D. 210 °. wzDescription\\Dept_server\Mac_PC\to_chu_ka_ching\F2 TCD TB MC\10\10_040.jpgdhgt251656192fLayoutInCell1fAllowOverlap1fBehindDocument0fHidden0fPse udoInline0fLayoutInCell1 3. With reference to the following figure, z = A. x - y . B. 90 ° - x - y . C. 180 ° - x

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Unformatted text preview: + y . D. 90 °-x + y . 4. If the sum of the interior angles of an n-sided polygon is twice that of an octagon (8-sided polygon), then n = A. 18 B. 16 C. 14 D. 12 5 . a b c d e In the figure, which of the following is true? A. a + b + c = 180 ° B. a + b = d + e C. b + d + e = 180 ° D. a + b + d + e = 180 ° 6. Refer to the following figure, a + b + c + d + e + f + g + h + i = A. 360 ° B. 540 ° C. 900 ° D. 1260 ° 1. 2. 3. 4. 5. 6. 7. In the figure, AEB and CGB are straight lines and x + z = y . Prove that DE // FG . 8. In the figure, EB ⊥ AC and AD ⊥ EC . (a) Prove that ∆ ABE ~ ∆ ECB . (b) Prove that AB × DB = CD × BE . 9. In the figure, ED bisects ∠ ADC , EC bisects ∠ BCD and ∠ CED = 90 ° . Prove that AD // BC . 10. In the figure, ∆ BCF , ∆ ACD and ∆ EFD are equilateral triangles. Show that AB = EF ....
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## This note was uploaded on 10/17/2011 for the course IELM 3010 taught by Professor Fugee during the Winter '11 term at HKUST.

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f2-quiz-20090119-geometry - y D 90 °-x y 4 If the sum of...

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