IMO- Mathematics Olympiad Class 9: Questions 449 - 454 of 919

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Question number: 449

» Triangles and Circles

MCQ▾

Question

The locus of a point equidistant from the three sides of a triangle is ________

Choices

Choice (4) Response

a.

Circumcenter

b.

Centroid

c.

Incenter

d.

Orthocenter

Question number: 450

» Coordinate Geometry

MCQ▾

Question

The distance between the points P (-4, -3) and Q (5, 6) is calculated as

Choices

Choice (4) Response

a.

94

b.

95

c.

93

d.

92

Question number: 451

» Triangles and Circles

MCQ▾

Question

The WXY and XZY are right angles. If WZ=7cm , YZ=17cm and WX=19cm , then the length of XZ is ________

Given the WXY and XZY are right angles

Given the WXY and XZY Are Right Angles

Given the WXY and XZY are right angles, if WZ is 7 cm, YZ is 17 cm and WX is 19 cm, then Find the length of XZ

Choices

Choice (4) Response

a.

878cm

b.

439cm

c.

278cm

d.

626cm

Question number: 452

» Coordinate Geometry

MCQ▾

Question

If the point (5, 7) lies on the graph of the equation 5y=ax+75 , find the value of a.

Choices

Choice (4) Response

a.

7

b.

9

c.

6

d.

8

Question number: 453

» Surface Area and Volumes

MCQ▾

Question

A rectangular field has its length and breadth in the ratio 5:2 . Its area is 0.9 hectares. The cost of fencing it at RS. 10 per meter is ________

Choices

Choice (4) Response

a.

Rs. 6200

b.

Rs. 7400

c.

Rs. 4200

d.

Rs. 5200

Question number: 454

» Triangles and Circles

MCQ▾

Question

In the figure PQ¯=PR¯ , RPS=60˚ and PT¯=PS¯ . Then x equals ________

Given the figure PQ equal to PR and PT equal to PS

Given the Figure PQ Equal to PR and PT Equal to PS

Given the figure PQ equal to PR and PT equal to PS and find the value of x

Choices

Choice (4) Response

a.

181°2

b.

40°

c.

30°

d.

25°

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