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Anamika Charles , asked a question
Subject: Math , asked on 7/3/15

how do i construct a 80 degree angle with a compass...??

Shivani From Dav International School Kharghar, added an answer, on 28/10/12
167 helpful votes in Math

Draw a point, and a long straight line through it. Put the centre of the compass over the point, with north on the compass (or zero degrees) on the line. Then draw a second line out from the point at 80 degrees on the compass. You 'll then have a 80 degree angle between the lines. 

It 's usually a trick that teachers decide to do on their pupils. A compass is what you use to find north and a pair of compasses is used to draw circles.

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Chippu From R.n. Podar School, added an answer, on 7/3/15
1 helpful votes in Math
Any angle that is not divisible by 15,is to be drawn with a protractor.
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Abdulrahman From Gems Our Own Indian School, added an answer, on 7/3/15
7 helpful votes in Math
not possible
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Sana From Delhi Public School, added an answer, on 9/3/15
2 helpful votes in Math
Hey guys, the method I will be telling isn 't something which can be justified, at least by me. However, it yields desired results, so you can go ahead with it 
you must be knowing how to construct a 60 o angle, so I won 't be writing down steps for that.
problem arises when we have to construct 20 o angle, so here are the steps :
  1. draw any line PQ. Mark a point O anywhere between P and Q on the line. 
  2. With O as centre, and any suitable radius, draw an arc intersecting PQ at A and B .
  3. With B as centre, and he same radius, cut an arc C on previously drawn arc AB. This is the normal 60 o angle. 
  4. With B and C as centres, cut arcs intersecting at L. This is the bisected 60o ie 30 o
  5. BUT DO NOT join L to O, instead join L to A. Angle LAQ is the required 20 o triangle. 
  6. So now you can construct  60o on it . HOPE IT HELPS :D 
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Abdulrahman From Gems Our Own Indian School, added an answer, on 7/3/15
7 helpful votes in Math
u need to make it with a protractor
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Rahul Saim From Air Force School, added an answer, on 17/3/15
1 helpful votes in Math
I had made 80degree with my compass
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Rahul Saim From Air Force School, added an answer, on 17/3/15
1 helpful votes in Math
I had made 80degree with my compass
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Sanjana Godolkar From Janadeepa School, added an answer, on 18/1/13
4 helpful votes in Math

you cant. omly the multiples of 15 can be constructed in compass

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Kr Bhoomika From Kendriya Vidyalaya, added an answer, on 28/10/12
9 helpful votes in Math

u can use the help of a protractor

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Abhilasha Rathi From St Anthony's Sr Sec School, added an answer, on 28/10/12

but if i could make with a protactor i wouldnt hav asked this q 

u mean my book has wrong information..............yeah ....hummm.

any more answers              anyways 10x  fr the ans..!!!!!!!!!!!

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Abhilasha Rathi From St Anthony's Sr Sec School, added an answer, on 2/11/12

totally rong ans miss shivani ........

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Srusti Dash From Buxi Jagabandhu English Medium Sch, added an answer, on 28/10/12
24 helpful votes in Math

it is not possible to construct angles which are not divisible by 7.5 degree using a compass. but you are free to use a protractor for that purpose:)

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