International Maths Olympiad Forum By SOF Olympiad Trainer - Page 406

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 9
C

Ans 2:

Class : Class 8
C

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4
B

Ans 2:

Class : Class 10

Ans 3:

Class : Class 5
B

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 6

Following are the steps of construction of an angle of 120°. Identify the wrong step.
(i) Draw a ray
(ii) With A as centre and a convenient radius, draw an arc to intersect at X.
(iii) With X as the centre, draw an arc with the same radius to intersect the above arc at C.
(iv) With C as centre, again draw an arc to intersect the first arc at D.
(v) Draw ray ∠CAB is the required angle of measure 120°

A(iii) and (v) only
B(iv) only
C(i) and (iv) only
D(v) only


ACCORDING TO ME ANSWER IS B

Ans 1:

Class : Class 8

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Class : Class 8

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 9
i think it should be either d or a

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