IMO- Mathematics Olympiad (SOF) Class 9: Questions 349 - 353 of 919

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 919 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

How to register?

Question number: 349

» Coordinate Geometry

MCQ▾

Question

Which of the points A (0,6), B (-2,4), C (-4,0), D (0, -2), E (0, -5), F (4, -4) do lie on the Y-axis?

Choices

Choice (4) Response

a.

B and E only

b.

A, D, E

c.

A and D only

d.

A, F, E

Question number: 350

» Triangles and Circles

MCQ▾

Question

In triangle ABC, the altitude from A to BC meets BC at D, and the altitude from B to CA meets AD at H. if , and , if then the length of HD is ________

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 351

» Lines, Angles and Quadrilaterals

MCQ▾

Question

Two regular polygons are such that the ratio between their no. of sides is 1: 2 and the ratio of measures of their interior angles is 4: 7. Find the number of sides of each polygon

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 352

» Surface Area and Volumes

MCQ▾

Question

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

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 353

» Triangles and Circles

MCQ▾

Question

A1 is a circle of radius 8 cm, A2 is a circle of radius 12 cm. Shivangi wants the two circles to touch tangentially. She knows that there are two possibilities for the distance between their centres. What are these two distances?

Choices

Choice (4) Response

a.

5 cm and 19 cm

b.

4 cm and 20 cm

c.

16 cm and 8 cm

d.

12 cm and 4 cm

f Page