1. To construct a copy of an angle ABC, the material that is Not necessary is
A.) Protractor
B.) Compass
C.) Ruler or Straightedge
D.) Pencil
Is the answer B or A? I'm stuck between those two. Thanks!
A
geometric constructions usually involve a compass and a straightedge. And, of course, a pencil.
Thank you so much! That was my first choice but I got a little confused later on.
The answer is B) Compass. A compass is a tool used to draw circles and arcs and is not necessary to construct a copy of an angle.
To construct a copy of an angle ABC, the material that is not necessary is (B) Compass.
To construct a copy of an angle, you only need a ruler or straightedge and a protractor. Here's an explanation of the process:
1. Start by drawing a line segment AB using a ruler or straightedge.
2. Place your protractor on point A and align the baseline of the protractor with the line segment AB.
3. Label the vertex of the angle as point B and the point where the protractor intersects the line segment as point C.
4. Without moving the protractor, draw an arc from point C to intersect the line segment AB. This will create point D.
5. Remove the protractor and draw a line segment from point D to point B.
6. Now, you have a copy of angle ABC.
In this construction, you don't need a compass. A compass is primarily used to draw circles and arcs of specific radii, which are not required for constructing a copy of an angle.