Understanding Elementary Shapes (IMO- Mathematics Olympiad Class 6): Questions 12 - 13 of 82

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Question number: 12

» Understanding Elementary Shapes

MCQ▾

Question

The measure of AOB in the following figure is

Arc c Arc c: Semicircle through G and HRay f Ray f: Ray through O, ARay g Ray g: Ray through O, BRay h Ray h: Ray through O, CSegment i Segment i: Segment [D, E] Segment j Segment j: Segment [E, F] Point O O = (5.28, 2) Point O O = (5.28, 2) Point O O = (5.28, 2) Point A A = (5.3, 5.26) Point A A = (5.3, 5.26) Point A A = (5.3, 5.26) Point B B = (1.84, 4.28) Point B B = (1.84, 4.28) Point B B = (1.84, 4.28) Point C C = (9.54, 2) Point C C = (9.54, 2) Point C C = (9.54, 2) 90? text1 = “90? “134? text2 = “134? “

Image of Three Lines Making Two Angles

Showing the image of three lines making two angles so find the angle AOB

Choices

Choice (4) Response

a.

900

b.

440

c.

1340

d.

2240

Question number: 13

» Understanding Elementary Shapes

MCQ▾

Question

Find the value of y in the figure, where AB and CD intersect at O.

Arc c Arc c: Semicircle through E and FArc d Arc d: Semicircle through G and HLine f Line f: Line through A, BLine f Line f: Line through A, BLine g Line g: Line through C, DLine g Line g: Line through C, DPoint A A = (2.3, 5.16) Point A A = (2.3, 5.16) Point A A = (2.3, 5.16) Point B B = (7.94, 1.32) Point B B = (7.94, 1.32) Point B B = (7.94, 1.32) Point C C = (1.64, 1.18) Point C C = (1.64, 1.18) Point C C = (1.64, 1.18) Point D D = (8.2, 5.18) Point D D = (8.2, 5.18) Point D D = (8.2, 5.18) Point M Point M: Intersection point of f, gPoint M Point M: Intersection point of f, gPoint M Point M: Intersection point of f, g (4y 50)? text1 = ” (4y 50)? “ (2y 60)? text2 = ” (2y 60)? “

Image of Two Intersecting Lines at Point M

Find the value of ‘y’ when two lines are intersecting at point M

Choices

Choice (4) Response

a.

7

b.

11

c.

12

d.

5

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