Understanding Elementary Shapes (IMO- Mathematics Olympiad Class 6): Questions 40 - 41 of 82

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Question number: 40

» Understanding Elementary Shapes

MCQ▾

Question

Which of the following statement (s) is/are true?

Choices

Choice (4) Response
a.

A parallelogram in which two adjacent angles are equal is a rectangle.

b.

A quadrilateral in which both pairs of opposite angles are equal is parallelogram

c.

In a parallelogram the number of acute angles is zero (or) two.

d. All a. , b. and c. are correct

Question number: 41

» Understanding Elementary Shapes

MCQ▾

Question

Find the value of x.

Line f Line f: Line through O, BLine f Line f: Line through O, BLine i Line i: Line through O, DLine i Line i: Line through O, DRay g Ray g: Ray through O, CRay h Ray h: Ray through O, ARay j Ray j: Ray through O, EPoint O O = (5.68, 3.02) Point O O = (5.68, 3.02) Point O O = (5.68, 3.02) Point B B = (8.66, 5.42) Point B B = (8.66, 5.42) Point B B = (8.66, 5.42) Point A A = (10, 3) Point A A = (10, 3) Point A A = (10, 3) Point D D = (2.96, 0.82) Point D D = (2.96, 0.82) Point D D = (2.96, 0.82) Point E E = (9.5, 1.66) Point E E = (9.5, 1.66) Point E E = (9.5, 1.66) Point C C = (5.68, 5.88) Point C C = (5.68, 5.88) Point C C = (5.68, 5.88) (5x 20)? text1 = ” (5x 20)? “ (2x-9)? text2 = ” (2x-9)? “ (3x)? text3 = ” (3x)? “ (5x-50)? text4 = ” (5x-50)? “ (4x-15)? text5 = ” (4x-15)? “

Image Made by Some Lines That Make Some Unknown Angles

Find the value of x by using given angles

Choices

Choice (4) Response
a.

500

b.

24.90

c.

230

d.

35.70

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