The length of the band in terms of π is given by the expression:
L = 40mm + π*10mm
<h3>
How to get the length of the band?</h3>
Remember that for a circle of diameter D, the circumference is:
C = π*D.
Now, if you look at the image, you can see that the length of the band will be equal to 4 times the diameter of the pencils (one time for each side). Plus 4 times one-fourth of the circumference of each pencil (for the four corners).
because the diameter is 10mm, the length of the band will be:
L = 4*10mm + 4*(π*10mm/4)
L = 40mm + π*10mm
This is the length of the band in terms of π.
If you want to learn more about circles:
brainly.com/question/14283575
#SPJ1
Answer:
<h2>
37°</h2>
Step-by-step explanation:
AB is diameter.
Angle made by diameter on circumference is always 90°

Calculate the sum

Move constant to R.H.S and change its sign

Calculate the difference

Hope this helps..
Best regards!!
Answer:
19/50
Step-by-step explanation:
If you put this in decimal form, it's 0.38.
All you have to do is convert the decimal to a reduced fraction, which is 19 over 50 (19/15).
Hope this helps you!
D is the correct answer
the area of circle A is nine times the area of circle B
good luck