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:)

- -3

**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.**

- -3

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

problem arises when we have to construct 20

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 :- draw any line PQ. Mark a point O anywhere between P and Q on the line.
- With O as centre, and any suitable radius, draw an arc intersecting PQ at A and B .
- With B as centre, and he same radius, cut an arc C on previously drawn arc AB. This is the normal 60
^{o}angle. - With B and C as centres, cut arcs intersecting at L. This is the bisected 60
^{o}ie 30^{o} - BUT DO NOT join L to O, instead join L to A. Angle LAQ is the required 20
^{o}triangle. - So now you can construct 60
^{o}on it . HOPE IT HELPS :D

- -2

Yes, you can construct 80 degree.Don't worry it's possible. I think you have known how the 60 degree can be drawn with compass and ruler. First you have to draw 60 degree angle by compass and ruler then over the 60 degree angle you have to draw 20 by compass and ruler degee angle. Then (60+20)= 80 degree it do easy. Go through the links first for 60 degree https://youtu.be/eISDJl_BKuA , then for 20 degee https://youtu.be/hpzG7GkbDbA

- -2

Not only multiples of 15 but every multiple of 5 is possible to be constructed by compass..though its not extreme accurate every time
To draw 80 degree first take a line segment AB.Mark point O on AB.Then keeping compass at O draw a semicircle.Construct 60 degree and a longer 120 degree gradually.Then construct 90°.After that from 90 degree draw another arc on 120 degrees arc.That will be 60 degree.Then keeping compass once on 90 degree and once on new 60 degree draw 2 arcs and let it meet.Join the point with a line and 80 degree is ready.Its very easy.

- 1

First take a line segment with the length of your choice then name it. For example I am naming it AB, so now take the measure of the length of length of AB on your compass and draw an arc. Now again the same length take an Arc from D and the previous are now this angle is 80 degree.

This is your answer.

Hope that helps!!

??????

This is your answer.

Hope that helps!!

??????

- 0

Steps are as follows

1. Draw a line segment of any length

2. Consider any point A on the line segment draw a semi circle. And name the semicircle BC

3. Extend the line segment till left end of semicircle.

4. Draw an arc D from point C on line segment of same measurement that of semicircle.

5. Measure length BC.

6. Cut arcs from point B and D. That will give you a point of intersection.

7. Join the arc intersection with point A

8. Measure the angle this is 80?.

1. Draw a line segment of any length

2. Consider any point A on the line segment draw a semi circle. And name the semicircle BC

3. Extend the line segment till left end of semicircle.

4. Draw an arc D from point C on line segment of same measurement that of semicircle.

5. Measure length BC.

6. Cut arcs from point B and D. That will give you a point of intersection.

7. Join the arc intersection with point A

8. Measure the angle this is 80?.

- 0