IMO- Mathematics Olympiad Class 9: Questions 238 - 242 of 919

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Question number: 238

» Coordinate Geometry

MCQ▾

Question

On plotting the points A (2, 9), B (6, 11), C (10, 9), D (8, 5), E (4, 5) and joining AB, BC, CD, CE, EA, Which of the following figure is obtained?

Choices

Choice (4) Response

a.

Parallelogram

b.

Hexagon

c.

Trapezoid

d.

Pentagon

Question number: 239

» Surface Area and Volumes

MCQ▾

Question

Squares ABCD and EFGH are congruent, Equation and G is the center of square ABCD. The area of the shaded region in the plane is ________

Given the Squares ABCD and EFGH are congruent

Given the Squares ABCD and EFGH Are Congruent

Given the Squares ABCD and EFGH are congruent and AB is 10 cm and G is the center of square ABCD and fined the area of the shaded region in the plane

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 240

» Surface Area and Volumes

MCQ▾

Question

27 metal balls each of radius r are melted together to from one big sphere of radius R. Then the ratio of surface area of the big sphere to that of a ball is ________

Choices

Choice (4) Response

a.

3

b.

9

c.

Equation

d.

Equation

Question number: 241

» Lines, Angles and Quadrilaterals

MCQ▾

Question

A running track is the ring formed by two concentric circles. It is 15 feet wide. The circumferences of the two circles differ by about ________

Choices

Choice (4) Response

a.

75 feet

b.

94 feet

c.

65 feet

d.

90 feet

Question number: 242

» Lines, Angles and Quadrilaterals

MCQ▾

Question

From the adjoining figure Equation . The value of x is ________

Image of adjoining figure AB is parallel to DE

Image of Adjoining Figure AB Is Parallel to DE

Adjoining figure AB is parallel to DE find the value of x

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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