IMO- Mathematics Olympiad Class 9: Questions 357 - 359 of 919

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Question number: 357

» Surface Area and Volumes

MCQ▾

Question

A wooden article was made by scooping out a hemisphere from each end of a solid cylinder. If the height of the cylinder is 20 cm, and its base is of radius 7.5 cm, find the total surface area of the article.

Image shows the wooden article

Image Shows the Wooden Article

A wooden article was made by scooping out a hemisphere from each end of a solid cylinder find the total surface area of the article

Choices

Choice (4) Response

a.

1374cm2

b.

3744cm2

c.

1650cm2

d.

3274cm2

Question number: 358

» Triangles and Circles

MCQ▾

Question

A, B, C and D are four points on a circle. AC and BD intersect at a point E such that BEC=130˚ and ECD=20˚ , then angle BAC is ________

Given the A, B, C and D are four points on a circle

Given the a, B, C and D Are Four Points on a Circle

A, B, C and D are four points on a circle. AC and BD intersect at a point E such that angle BEC = 130 and ECD is 20 then find angle BAC

Choices

Choice (4) Response

a.

90˚

b.

120˚

c.

100˚

d.

110˚

Question number: 359

» Coordinate Geometry

MCQ▾

Question

See the given figure and find the following:

  1. The Co-ordinate of B

  2. The Point Identified by the co-ordinates (-3, -5)

  3. The Co-ordinate of C

  4. The Point Identified by the co-ordinates (-5, -3)

Finding the values of the elements asked in the question

Finding the Values of the Elements Asked in the Question

Find the related co-ordinates of B and more

Choices

Choice (4) Response

a.

1=(5,2),2=E,3=(5,5),4=B

b.

1=(5,2),2=E,3=(5,5),4=H

c.

1=(5,2),2=C,3=(5,5),4=H

d.

1=(5,2),2=E,3=(3,5),4=H

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