Answer:
<u>b)</u> (I think)
Step-by-step explanation:
What exactly is the question?
Hope this helps!
Have a nice day! :-)
Answer:
r=20÷7
Step-by-step explanation:
7r=4•5
r=20÷7
r=2.836467473
Hello!
The formula for area of a circle is


is 3.14 (which is 22/7), and r stand for the radius, which is half of the diameter. If the diameter is 28 cm, the radius is 14 cm.


616
Answer:
Approximately 616 cm

.
Hope this helps!
Answer:
The length of the office is 36.4 ft
Step-by-step explanation:
The length of the classroom = 20 ft long
The length of the office = 20 ft + 82% of the classroom length
Now, 82 % of classroom length = 82 % of 20 ft
⇒ 
or, 82% of 20 ft = 16.4 ft
⇒The length of the office = 20 ft + 16.4 ft = 36.4 ft
Hence, the length of the office = 36.4 ft
Answer:
5,7%
Step-by-step explanation:
190270 is 100%
1% is 1902,7
10770/1902,7 = 5,66