Understanding Elementary Shapes (IMO- Mathematics Olympiad Class 6): Questions 9 - 11 of 82

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Question number: 9

» Understanding Elementary Shapes

MCQ▾

Question

An angle which is equal to Equation is called

Choices

Choice (4) Response

a.

Complete angle

b.

Obtuse angle

c.

Acute angle

d.

Right angle

Question number: 10

» Understanding Elementary Shapes

MCQ▾

Question

Measure of Equation in the given figure is

Triangle poly1 Triangle poly1: Polygon A, B, CArc d Arc d: Semicircle through F and GArc e Arc e: Semicircle through H and IArc h Arc h: Semicircle through J and KSegment c Segment c: Segment [A, B] of Triangle poly1Segment a Segment a: Segment [B, C] of Triangle poly1Segment b Segment b: Segment [C, A] of Triangle poly1Ray f Ray f: Ray through C, DSegment g Segment g: Segment [A, E] Point A A = (5.52, 4.84) Point A A = (5.52, 4.84) Point A A = (5.52, 4.84) Point B B = (3.8, 1.6) Point B B = (3.8, 1.6) Point B B = (3.8, 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) Point E Point E: Point on aPoint E Point E: Point on aPoint E Point E: Point on ax text1 = “x”x text1_1 = “x”30? text2 = “30? “

Image of a Triangle With Given Angles

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

Choices

Choice (4) Response

a.

1500

b.

1300

c.

1150

d.

1200

Question number: 11

» Understanding Elementary Shapes

MCQ▾

Question

Find the value of ‘a’ in the figure, where AB and CD intersect at N.

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 = (3, 5) Point A A = (3, 5) Point A A = (3, 5) Point B B = (10.24, 1.76) Point B B = (10.24, 1.76) Point B B = (10.24, 1.76) Point C C = (2.76, 1.78) Point C C = (2.76, 1.78) Point C C = (2.76, 1.78) Point D D = (10.22, 5.08) Point D D = (10.22, 5.08) Point D D = (10.22, 5.08) (8a - 70)? text1 = ” (8a - 70)? “ (5a 20)? text2 = ” (5a 20)? “

Image of Two Intersecting Lines at Point N

Find the value of ‘a’ when two lines are intersecting at point N

Choices

Choice (4) Response

a.

35

b.

15

c.

30

d.

25

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