IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 666 - 672 of 1022

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Question 666

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Question

MCQ▾

In a triangle ABC, and D is the mid – point of AC. The value of is equal to ________.

Choices

Choice (4)Response
a.
b.
c.
d.

Question 667

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Question

MCQ▾

The value of is ________.

Choices

Choice (4)Response
a.
b.
c.
d.

Question 668

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Question

MCQ▾

In the given figure, triangles ABC and DCB are right angled at A and D respectively and , then of from

Image of Two Triangles ABC and DCB

Choices

Choice (4)Response
a.ASS
b.SAS
c.AAA
d.None of the above

Question 669

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Question

MCQ▾

In the given figure, and , then

Image of Two Triangles OAP and OBQ

Choices

Choice (4)Response
a.PA = OB
b.OP = BQ
c.AP = QB
d.OA = OQ

Question 670

Edit

Question

MCQ▾

If the two legs of a right angled triangle are equal and the square of the hypotenuse is 100 , then the length of each leg is ________.

Choices

Choice (4)Response
a. cm
b. cm
c. cm
d.10 cm

Question 671

Edit

Question

MCQ▾

In the figure (not drawn to scale), ABC is an equilateral triangle and DAB is an isosceles triangle with DA = DB, find y.

Image of a Triangle ABC Having Another Triangle DAB in It

Choices

Choice (4)Response
a.
b.
c.
d.

Question 672

Edit

Question

MCQ▾

Which of the following statements is true?

Choices

Choice (4)Response
a.The bisector of the vertical angle of an isosceles triangle bisects the base at right angles.
b.If the hypotenuse and an acute angle of one right angled triangle is equal to the hypotenuse and the corresponding acute angle of another triangle, then the triangles are congruent.
c.In an isosceles triangle, the angles opposite to equal sides are equal.
d.All a. , b. and c. are correct