Understanding Elementary Shapes (IMO- Mathematics Olympiad Class 6): Questions 16 - 17 of 82

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Question number: 16

» Understanding Elementary Shapes

MCQ▾

Question

In figure, ABDC and ADBC. If BCD=1150 and DB is bisector of D . Find BDC and ABC.

Quadrilateral poly1 Quadrilateral poly1: Polygon A, B, C, DArc g Arc g: Semicircle through G and HArc e Arc e: Semicircle through I and JArc h Arc h: Semicircle through K and LSegment a Segment a: Segment [A, B] of Quadrilateral poly1Segment b Segment b: Segment [B, C] of Quadrilateral poly1Segment c Segment c: Segment [C, D] of Quadrilateral poly1Segment d Segment d: Segment [D, A] of Quadrilateral poly1Segment f Segment f: Segment [D, B] Point A A = (4, 4) Point A A = (4, 4) Point A A = (4, 4) Point B B = (7.86, 4) Point B B = (7.86, 4) Point B B = (7.86, 4) Point C C = (6.7, 1.38) Point C C = (6.7, 1.38) Point C C = (6.7, 1.38) Point D D = (2.72, 1.4) Point D D = (2.72, 1.4) Point D D = (2.72, 1.4) 115? text1_1 = “115? “

Image of a Parallelogram or Rhombus ABCD With One Angle

Showing an image of a parallelogram or rhombus ABCD, so find ∠BDC and ∠ABC.

Choices

Choice (4) Response
a.

350,750

b.

25.50,650

c.

32.50,650

d.

30.50,600

Question number: 17

» Understanding Elementary Shapes

MCQ▾

Question

An angle which is more than 900 is called

Choices

Choice (4) Response
a.

Obtuse angle

b.

Acute angle

c.

Complete angle

d.

Right angle

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