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Subject :IMO    Class : Class 5

How many right angles are there on the outside of the figure shown below?



A 2
B 4
C 6
D 8


how?

Ans 1:

Class : Class 6
THE ANSWER IS 12 AS IF YOU LOKE AT ACUTE ANGLES IN THE EXTERIOR YOU CAN SEE 2 RIGHT ANGLES

Ans 2:

Class : Class 7
It is 8

Ans 3:

Class : Class 7
The answer is obviously 4.There cannot be 8 at all costs

Ans 4:

Class : Class 5
Look carefully, even I got to know the answer after reading the comments

Ans 5:

Class : Class 7
Very good Nilarka Pahari and Khushie. Friends , the correct answer is B only. Just try to see . Tilt your head to your right and try to see the cuts at the end of the ribbons . You will find the error of your own. Did you find that? I know that only 5 to 37 percent of you can nfind the eight angles. Be very accurate and intelligent. I also did the same mistake while giving the test . Please look carefully!

Ans 6:

Class : Class 6
No, it is 8. You can see 4 of them easily. The other four are hidden between the sharp edges of the figure. Tilt it 2 find out.

Ans 7:

Class : Class 9
It is Eight . If you tilt the small angles you will notice that there are eight right angles

Ans 8:

Class : Class 8
How ??

Ans 9:

Class : Class 9
So report the error man

Ans 10:

Class : Class 8
Actually it should be 4 or 12

Ans 11:

Class : Class 6
Everybody look carefully ! We use to be clever know we are not.

Ans 12:

Class : Class 7
The answer is 4

Ans 13:

Class : Class 9

Ans 14:

Class : Class 7
Thank you very much friends if you all co-operate me, Nilarka and Khushie!

Ans 15:

Class : Class 4
No ,the answer is 8 because those small angles are also right angle

Ans 16:

Class : Class 5

Ans 17:

Class : Class 6

Ans 18:

Class : Class 5
4/8 votei vote 4 they have done wrong with no solution

Ans 19:

Class : Class 6
On the outside, we see 4 right angles easily. But if you turn your device 90 degrees left/right, you will see that the angle formed by the sharp edges of the figure also measures 90 degrees. It is just not visible due to the angle you look at it.

Ans 20:

Class : Class 8
answer is 4

Ans 21:

Class : Class 8
4

Ans 22:

Class : Class 7
The answer is 4 definitely!

Ans 23:

Class : Class 5
It should be 4

Ans 24:

Class : Class 9
It cannot be 8 at all costs There is an error in this question

Ans 25:

Class : Class 4
there cannot be 8

Ans 26:

Class : Class 6
I think soumyaraj Roy is correct as there are no other angles that are exactly 90 degrees.

Ans 27:

Class : Class 6
answer is 4. how can it be 8

Ans 28:

Class : Class 4
Look closely. The answer is 8. If you look at the cuts in the ribbon which looks like a V at the top, you can see the right angle by tilting your device. Same follows with the other cuts

Ans 29:

Class : Class 6

Ans 30:

Class : Class 7

Ans 31:

Class : Class 5

Ans 32:

Class : Class 6

Ans 33:

Class : Class 9
IT IS 8 ONLY

Ans 34:

Class : Class 6
IT IS 12

Ans 35:

Class : Class 8
The correct answer is 4. It cannot be 8 at all costs. There is a error!!!!!!!!!!

Ans 36:

Class : Class 9
it cannot be 8 at all costs

Ans 37:

Class : Class 5
D.8

Ans 38:

Class : Class 5
B

Ans 39:

Class : Class 6
The answer is D(8) because if we look at the V from a Tilted angle then it is a 90 degree angle. 4 V4 right angles4 4= 8

Ans 40:

Class : Class 5
THE ANSWER IS4

Ans 41:

Class : Class 6
confusing but obvious

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