IMO- Mathematics Olympiad (SOF) Class 6: Questions 398 - 401 of 1049

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Question number: 398

» Decimals

MCQ▾

Question

The decimal form of is

Choices

Choice (4) Response

a.

5.255

b.

5.000

c.

5.375

d.

2.325

Question number: 399

» Understanding Elementary Shapes

MCQ▾

Question

State which of the following statement (s) are true?

(i) We can draw a triangle with sides 3 cm, 4 cm and 7 cm.

(ii) We can draw a triangle with two right angles.

(iii) The exterior angle of a triangle is equal to the sum of the interior opposite angles.

(iv) Two angles which form a linear pair must be supplementary.

Choices

Choice (4) Response

a.

(i) and (ii)

b.

(iii) and (iv)

c.

(i) and (iv)

d.

(i) and (iii)

Question number: 400

» 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: 401

» 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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