A chord is any line that touches two ends on a circle. Line segment AC is a chord.
A tangent is a line that only touches one point on the circle. The purple line on top of the circle is a tangent line.
A radius is a line from the center to any point on the circle. The red line is a radius.
A secant is like a chord, except it is a line and keeps going. The cyan (sky blue) line is a secant line.
A point of tangency is the point that the tangent line touches. The yellow point on the purple line is the point of tangency.
A diameter is a straight line that crosses the center and two points on the circle. You can say it’s two radii put together. Line segment BD (green) is a diameter.
Hope this helps!
When you count the small lines in between 8 and 9, there are 8 lines
The difference between 8 and 9 is 1
Divide 1 by 8, you will have 0.125
This implies each small lines represent 0.125
When you count from 8 to where the point is, we have 6 small lines
Multiply the 6 by 0.125, we will have 0.75
8 + 0.75 = 8.75
The decimal is 8.75
30/20= 1 and 10/20 in simplest form that is 1 and 1/2
The answer is b
first do x+1, which is 4
then do 4(4), which is 16
then add the 3 to 16, which is 19, thus b is correct
