It would be a straight line of length bc
B.C. years are like negative numbers on a numberline counting down then counting up again once it hits A.D. (A.D. years are positive numbers on a number line)
This depends on what the points are for B, and C.
I assume that points BC is a straight line and that D is the point where the line DE intersects BC. If this is so, and CDE is 55 degress, then BDE is 125 degrees.
It means Before Christ
Line AB is perpendicular to BC. you can say this like; Line AB is at a right angle to BC
It would be a straight line of length bc
it means the dates of the past like bc is the same as bce which id the decrease of dates like 524bce to 520bce is 2 years but ad is the opposite
4000 BC; time goes down in BC not upwards like AD. The higher the number in BC the earlier it is
It Separates BC (Line on top) into two congruent line segments.
B.C. years are like negative numbers on a numberline counting down then counting up again once it hits A.D. (A.D. years are positive numbers on a number line)
It is thought that the first use of numbers was about 30,000 BC. The earliest known base 10 system dates to about 3100 BC in Egypt.
try goog'ling it
BC= negative number AD= Positive number
700 bc
BC, is an abbreviation of "Before Christ."
Just like line segments or lines, you just need two points to name them. Line ---.-----.-----------------.--------------> A B C D Line= AB Line= BC Ray= CD