IMO- Mathematics Olympiad Class 9: Questions 334 - 338 of 919

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Question number: 334

» Triangles and Circles

MCQ▾

Question

C1 is a circle of radius 6 cm, C2 is a circle of radius 8 cm. Jyoti wants the two circles to touch tangentially. She knows that there are two possibilities for the distance between their centers. What are these two distances?

Choices

Choice (4) Response

a.

6 cm and 8 cm

b.

2 cm and 14 cm

c.

3 cm and 4 cm

d.

2 cm and 8 cm

Question number: 335

» Surface Area and Volumes

MCQ▾

Question

The parallel sides of a trapezium are 55 cm and 85 cm and non-parallel sides are 24 cm and 28 cm. the approximate area of trapezium is ________

Choices

Choice (4) Response

a.

650cm2

b.

750cm2

c.

950cm2

d.

1050cm2

Question number: 336

» Surface Area and Volumes

MCQ▾

Question

In the given figure, PQ is a diameter of a circle with center O and OP=7cm . The area of the shaded region________

The PQ is a diameter of a circle with center O and OP is 7cm

The PQ Is a Diameter of a Circle With Center O and OP Is 7cm

Given the PQ is a diameter of a circle with center O and OP is 7 cm find the area of shaded region

Choices

Choice (4) Response

a.

55cm2

b.

95.3cm2

c.

66.5cm2

d.

45cm2

Question number: 337

» Triangles and Circles

MCQ▾

Question

The point concurrency of medians of a triangle is called ________.

Choices

Choice (4) Response

a.

Incenter

b.

Centroid

c.

Orthocenter

d.

Circumcenter

Question number: 338

» Surface Area and Volumes

MCQ▾

Question

In the given figure, RSTV is a square inscribed in a circle with center O and radius r. The total area of shaded region is ________

Given the RSTV is a square inscribed in a circle

Given the RSTV Is a Square Inscribed in a Circle

Given the RSTV is a square inscribed in a circle with center O and radius r and find the total area of shaded region

Choices

Choice (4) Response

a.

πr28r

b.

2r(π2)

c.

r2(π2)

d.

π(r22)

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