Surface Area and Volumes (IMO- Mathematics Olympiad Class 9): Questions 53 - 56 of 104

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Question number: 53

» Surface Area and Volumes

MCQ▾

Question

A spherical ball of lead, 3 cm in diameter is melted and recast into three spherical balls. The diameter of two of these is 1.5 cm and 2 cm respectively. The radius of the third ball is________.

Choices

Choice (4) Response

a.

3 cm

b.

2.5 cm

c.

3.5 cm

d.

2.66 cm

Question number: 54

» Surface Area and Volumes

MCQ▾

Question

ABC is triangle in which BE, CF are medians. If Equation , Equation and Equation , then the area of Equation is________

Given the ABC is triangle in which BE, CF are medians

Given the ABC Is Triangle in Which BE, CF Are Medians

Given the ABC is triangle in which BE, CF are medians. If BE is 15 cm, CF is 36 cm find the area of Triangle ABC

Choices

Choice (4) Response

a.

240

b.

120

c.

102

d.

360

Question number: 55

» Surface Area and Volumes

MCQ▾

Question

The area of a quadrilateral JKLM, in which Equation , Equation is an equilateral triangles of side 20 cm and Equation is________.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 56

» 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.

Equation

b.

Equation

c.

Equation

d.

Equation

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