how to make an angle of 90 degree using compass ?

Answer 1

Here is how:

Draw a line segment. Then mark off a fraction of that line segment on your compass. Draw one circle with this radius on each end of the line segment. Attach the intersections of the two circles, and you have made a 90 degree angle!

Answer 2

Draw a horizontal line. it can be any length but make it 4 inches long.

Take a compass and open it more then half the length, say make it 3.5 inches.

Put the Pointer of the compass at the one end and draw an arc on the top and the bottom of this line.

Do not change the setting on the compass .

Go to other end and do the same.

You will have two intersecting arcs on each side of the compass, giving you two point one on each side of the line

Join the two points to form a line, this line will be perpendicular to the horizontal line.

If you measure the angle between the two line it will be 90 degrees each.

Answer 3

Using a compass? compass divider? or magnetic compass?
1. Compass = It's already labelled, just find 0 and 90 and use the center of the compass as the angle.
2. Compass Divider = Make a circle. Make two intersecting lines through the center, you can use the corner of an index card for this. The corner of index card is already 90 degrees.
3. Magnetic Compass = It's already labelled 0, 90, 180, 270.

Answer 4

Suppose you want a 90° at point A on a line.
First, mark off the same-sized arc on either side of A. Call these points B and C.
Second, make your compass a larger radius and mark same-(larger)-sized arcs from the two points on the line (B and C). Where these arcs intersect, call this point D.
Finally, draw line AD. It will be perpendicular to your original line a point A.

Answer 5

first draw a st line AB
from A open the compass of any radius say 5cm .draw a semicircle. now taking same radius draw 2 arcs on the semicircle . now bisect these arcs and join to A
this is the required 90 degree angle

Answer 6

Maeterials needed---- A ruler, well sharpened pencil, a compass
Procedure---- With a pencil, draw a srtaight line up to 10 cm on a clean piece of paper. Mark out two pointa A and B on this drawn line. Extend ur compass to a convinient radius n place the compass on point A, draw a curve towards point B on the top n with the same radius draw a curve towrads poin B below. with this same radius, place ur compass on point b , draw a curve towards point A at the top n below. mark the point where the two curves intercept at the top n below the drawn line after which you join the line from the top to the one below. name the interception @ the top C n below D. the angle Between A and C , C and B, B and D, D and A = 90....

Answer 7

Some very advanced abstract algebra proves what can and cannot be constructed with compasses, e.g an angle cannot be trisected. You can see how angles of 180,90, 45 etc can be constructed. I think the answerfor 70deg is NO but don't ask for a proof!

Answer 8

you can construct it in this way
1) draw a horizontal line
2) name the ends a and b
3) cut an arc(semi circle) wit centre as a
4) now the meeting point of line and arc mark as c
5) without changing radius cut an arc wit c as centre
6) again wit the meeting point of the arc and semi circle cut arc
7) now draw joining arcs from the arcs you have got it

Answer 9

MAKE A SEMI CIRCLE ON THE LINE. THEN MAKE 60 DEGREE,120 DEGREE.THEN MAKE A ARC FROM BOTH THESE POINTS INTERSECTING EACH OTHER THE POINT U GET IS 90 DEGREE

Answer 10

draw two intersecting perpendicular lines.