IMO- Mathematics Olympiad Class 9: Questions 398 - 401 of 919

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Question number: 398

» Triangles and Circles

MCQ▾

Question

The sides BC, CA and AB of Equation are produces in order to form exterior angles Equation and Equation , then Equation is ________

 Given the sides BC, CA and AB of triangle ABC

Given the Sides BC, CA and AB of Triangle ABC

Given the sides BC, CA and AB of triangle ABC are produces in order to form exterior angles ACD, BAE and CBF and find the sum of ACD, BAE and CBF

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 399

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the adjoining figure, Equation Line p and q are transversals, then ST = ________

Given in figure line A, B and C are parallel

Given in Figure Line a, B and C Are Parallel

Given in figure line A, B and C are parallel and Line p and q are transversals find the value of ST

Choices

Choice (4) Response

a.

12 units

b.

10 units

c.

14 units

d.

15 units

Question number: 400

» Triangles and Circles

MCQ▾

Question

In Equation the medians PS, QT and RU pass through O. if Equation , and then OS is ________

In triangle PQR, the medians PS, QT and RU pass through O

In Triangle PQR, the Medians PS, QT and RU Pass Through O

In triangle PQR, medians PS, QT and RU pass through O then find OS

Choices

Choice (4) Response

a.

2.6

b.

2.5

c.

2.9

d.

2.3

Question number: 401

» Surface Area and Volumes

MCQ▾

Question

What change in percent is made in the area of a rectangle by decreasing its length and increasing its breadth by Equation ?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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