Identify angles: Count the number of obtuse, acuse, reflex, and right angles in drawing

[naheed]

Please help me with this question.

 

[Dr.Peterson]

Please help me with this question.View attachment 36237

You might start by marking each right angle in the picture, perhaps with a dot. Then count them.

Please do that and show us your result, so we can see that you know what a right angle is.

Then do the same, using a different symbol, with each acute angle, and each obtuse angle.

Finally, do you know what a reflex angle is?

It will help a lot if you tell us about your own thinking, and where and why you are stuck:

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[naheed]

I think this is the answer. But some don't agree with it that is why I was confused.
10 right angles
7 acute angles
8 obtuse angles
0 reflex angle

All 25 corners covered.

 

[Dr.Peterson]

I think this is the answer. But some don't agree with it that is why I was confused.
10 right angles
7 acute angles
8 obtuse angles
0 reflex angle

All 25 corners covered.

Thanks. This is what you should have said in the first place ... though it would be even more helpful if you could say what others say about it (and who those others are, such that you are influenced by their opinions).

I agree with your answers:

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[The Highlander]

I think this is the answer. But some don't agree with it that is why I was confused.
10 right angles
7 acute angles
8 obtuse angles
0 reflex angle

All 25 corners covered.

In no way wishing to contradict the previous response (from @Dr.Peterson)... I fully accept that it makes perfect sense to consider only the internal angles shown on the diagram.

However, I suppose it's possible that the author of the question might have intended that the student is required to find and count any reflex angles that are in the diagram (since a space was provided for them in the answer area?) and, of course, for every internal angle in the diagram there is a corresponding external angle which is a reflex angle for all of the 25 internal angles in the diagram.

One could, therefore, "argue" that there should be 25 reflex angles counted in the answer. I have illustrated just two of them (in orange) on the modified diagram, below.

Might this have been where the disagreement/confusion arose?

Hope that helps. ?

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[Dr.Peterson]

Might this have been where the disagreement/confusion arose?

Yes, that's a possibility, and is what I was hoping for an explanation of when I asked what others said.

My interpretation of the problem is based on the fact that when we ask about angles in polygons, we typically mean interior angles. It depends on context, which, as usual, we don't know.

 

[The Highlander]

Yes, that's a possibility, and is what I was hoping for an explanation of when I asked what others said.

My interpretation of the problem is based on the fact that when we ask about angles in polygons, we typically mean interior angles. It depends on context, which, as usual, we don't know.

Indeed. ?
And, as I said, " it makes perfect sense to consider only the internal angles". ?