IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 464 - 465 of 1059

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Question number: 464

» Understanding Elementary Shapes

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MCQ▾

Question

Measure of in the given figure is

Triangle poly1 Triangle poly1: Polygon A, B, C Arc e Arc e: Semicircle through H and I Arc h Arc h: Semicircle through J and K Segment c Segment c: Segment [A, B] of Triangle poly1 Segment a Segment a: Segment [B, C] of Triangle poly1 Segment b Segment b: Segment [C, A] of Triangle poly1 Ray f Ray f: Ray through C, D Point A A = (5.52,4.84) Point A A = (5.52,4.84) Point A A = (5.52,4.84) Point B B = (1.52,1.6) Point B B = (1.52,1.6) Point B B = (1.52,1.6) Point C C = (7.4,1.6) Point C C = (7.4,1.6) Point C C = (7.4,1.6) Point D D = (9.58,1.6) Point D D = (9.58,1.6) Point D D = (9.58,1.6) 40? text2 = “40? “ 130? text2_1 = “130? “

Image of a Triangle with Given Angles

Showing an image of a triangle with given angles, so find the angle BAC

Choices

Choice (4) Response

a.

800

b.

1100

c.

750

d.

900

Question number: 465

» Understanding Elementary Shapes

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MCQ▾

Question

In the figure, not drawn to scale, CBF is a straight line and Find

Arc c Arc c: Semicircle through G and H Line f Line f: Line through A, D Line f Line f: Line through A, D Line g Line g: Line through F, C Ray h Ray h: Ray through B, E Segment i Segment i: Segment [I, J] Segment j Segment j: Segment [J, K] Point A A = (2.1,3.7) Point A A = (2.1,3.7) Point A A = (2.1,3.7) Point D D = (7.86,2.3) Point D D = (7.86,2.3) Point D D = (7.86,2.3) Point F F = (3.86,5.2) Point F F = (3.86,5.2) Point F F = (3.86,5.2) Point C C = (6.12,0.7) Point C C = (6.12,0.7) Point C C = (6.12,0.7) Point B Point B: Intersection point of f, g Point B Point B: Intersection point of f, g Point B Point B: Intersection point of f, g Point E E = (6.1,5.68) Point E E = (6.1,5.68) Point E E = (6.1,5.68) 49? text1 = “49? “

Image Made by Some Different Lines Making a Right Angle

Showing an image made by different line so find the angle EBF

Choices

Choice (4) Response

a.

b.

c.

d.