(as shown below) 2). 1 ; We can draw 105 degree angle by using a compass by the following way:1. A 30 ° angle is half of a 60 ° angle. Library. Don't use protractor. 8 years ago. To construct a 135-degree angle you need basic tools you find in your mathematics geometrical set. Where did you go to school? 180 degree is just a straight line. The first steps to constructing a 135-degree angle are constructing a right angle first (90 degrees … Printable step-by-step instructions. Mark the vertex of your angle anywhere on the paper. Bisecting an angle. Construct a line through A and parallel to l. Draw a line segment AB, take a point P below it. See the proof below for more on this. This question is only an example . Use ruler and draw a Line segment OB of any convenient length. Draw a line AB2. Draw a line AB and then construct … By combining them you can construct other angles. Now use compass and open it to any convenient radius. we can't make 110 degree angle by the help of compass. Show Step-by-step Solutions. These angles must be constructed with help of COMPASS and SCALE i.e. Parth. With center D, and radius BC draw an arc. It works by constructing an isosceles right triangle, which has interior angles of 45, 45 and 90 degrees. it can be made by protractor. Method 1 of 2: At the End of a Line Segment 1. (∠DCB=60∘∠DCB=60∘because we just made CD=BC=BD .) Ruler. See the proof below for more on this. Adding angles. but for 80°, 140°, 160° .... are not divisible by 15° so we can't draw it accurately with help of compass that's why we have protector. Brijesh. I want construction of these angles with compass only Additional Details It's an 8th standard question. Lv 4. A way is to draw a straight line, mark any two points, construct a perpendicular bisector of the line between these points, bisect the right angle once to get 45 degrees, and bisect 45 degrees to get 22.5 degrees. Step 4: Draw a line from O through A. How to bisect an angle with compass and straightedge or ruler. construct a parallelogram HEAR, HE=5cm, EA=6cm, angle R=85°(degree). 6 years ago | 1.4K views. To construct a 30-degree angle, you’ll need a compass, a straightedge, such as a ruler, and a pencil. Since ZB is a straight line, so formed Angle AOZ = 90 Degree (angle sum property) Now, to construct at 135 degree angle, we will construct the angle bisector of above angle AOB. There are various ways to do this, but in this construction we use a property of Thales Theorem.We create a circle where the vertex of the desired right angle is a point on a circle. To construct an angle, we must need the following mathematical instruments. First, follow the steps above to construct your 60 ° angle. how to construct 180 degree angle by compass? Abdul Ahad. You don't need a compass to do this you just need a ruler. Zaiden Jordy. How to construct angles 105 120 135 150 degrees - Compass. This page shows how to construct (draw) a 45 degree angle with compass and straightedge or ruler. 30-degree Angle (30°) Construction. The angle of 150 degrees is made. On this page we show how to construct (draw) a 90 degree angle with compass and straightedge or ruler. Watch fullscreen. ruler only. I m stuck at many problems which consist of 80°, 85° and 110°. So, to construct an angle of 30º, first construct a 60º angle and then bisect it. 2. How to construct 150 degree angle with compass 2 See answers 0tohero 0tohero HEY MATE HERE IS YOUR ANSWER.Take a line segment, say, AB. How to draw an angle of 85 degree with compass 2 See answers gaurav244 gaurav244 First draw a line then make a arc with help of compass can u explain me in detail k. one min msg me inbox lucifier4 lucifier4 Angle of 85 cannot be drawn with the help of compass. Step 2 : (i) With ‘O’ as center draw an arc of any radius to cut the line at A. 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