# User Forum

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?

Class : Class 6

Class : Class 5
B

Class : Class 9

## Ans 4:

Class : Class 4
there cannot be 8

Class : Class 7
It is 8

## Ans 6:

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 7:

Class : Class 8
it cannot be 8 at all costs

## Ans 8:

Class : Class 7
The correct answer is 4. It cannot be 8 at all costs. There is a error!!!!!!!!!!

Class : Class 6

Class : Class 6
IT IS 12

Class : Class 7

Class : Class 8

## Ans 13:

Class : Class 5
Everybody look carefully ! We use to be clever know we are not.

Class : Class 8
How ??

## Ans 15:

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

## Ans 16:

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

## Ans 17:

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

## Ans 18:

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

## Ans 19:

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 20:

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

Class : Class 7

Class : Class 9
IT IS 8 ONLY

## Ans 23:

Class : Class 8
So report the error man

## Ans 24:

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 25:

Class : Class 7
Actually it should be 4 or 12

Class : Class 5

## Ans 27:

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

Class : Class 5
D.8

## Ans 29:

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

## Ans 30:

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.

Class : Class 7

Class : Class 9
It should be 4

## Ans 33:

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

Class : Class 5

Class : Class 5

Class : Class 6

Class : Class 8
4

## Ans 38:

Class : Class 7
It is Eight . If you tilt the small angles you will notice that there are eight right angles