It's along the number line
Y-y1=m(x-x1) she kdhkshs jshdkhd
You need to do 20 divide by 21 to get a decimal. Then if you multiply the decimal by hundred you should get the percentage.
The polygon would have 18 sides. Hope this helps!
Answer:
Circumference of a circle= 
Step-by-step explanation:
The circumference of any circle is the total length of its boundary which can be calculated by the formula:
Circumference of a circle= 
Where 'r' is the radius of the circle
For, the given circle the circumference can be find in terms of
by putting some value of radius in the formula, which gives the circumference in terms of
.