1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ohaa [14]
3 years ago
10

The radius of a coin is 20 cm, find its surface area. (12.57 cm)​

Mathematics
1 answer:
zmey [24]3 years ago
5 0

Answer:

Step-by-step explanation:

assume the coin is circular.

i think radius=2.0 cm

∵ 20 cm is too big for a coin.

i have calculated the area of both the surfaces.

area =2×πr²=2×π×2.0²=8 π=8×3.14=25.12 cm²

if only one surface then area=π×2²=4π≈12.57 cm²

You might be interested in
740% as a mixed number
alex41 [277]
740% as a fraction is 37/5.
37/5 as a mixed number is 7 2/5.

Hope this helps! Good luck.
5 0
3 years ago
1.3485 divided by 0.31 please
levacccp [35]
The Answer Is 4.35. Hope This Helps.
6 0
3 years ago
Read 2 more answers
PLZ HLP ASAP WILL MARK BRIANLEIST
alisha [4.7K]
.625 
take the amount of quarts divide it by 4 we get .625 then we put it was a fraction 625/1000 after we simplify we get 5/8
5/8 of a can per quart
6 0
3 years ago
Read 2 more answers
There are 6/8 of a cake leftover after a birthday party. How many 1/4 pieces can be made from the leftover cake?
marishachu [46]

Answer: 3

Step-by-step explanation:

6/8 is the same as 3/4;

there are 3 lots of 1/4 in 3/4

5 0
3 years ago
Read 2 more answers
BRAINLYEST
Degger [83]
I can’t rly see the question please make it bigger
7 0
3 years ago
Read 2 more answers
Other questions:
  • The perimeter of a school gym is 522 feet. The gym measures 80 feet wide. Determine the length of the school. PLEASE EXPLAIN THE
    5·1 answer
  • What is m∠5?<br> (please view attachment)
    6·2 answers
  • The ratio of the number of boys to the number of girls is 8:7. The total class is 195 how many boys are there. How many girls ar
    14·1 answer
  • If a person walks 2.4 miles in 1.5 hours, how far can he walk in 3 hours?
    14·2 answers
  • The stem-and-leaf plot. represents the number of flowers in different public gardens throughout the city. How many gardens have
    5·1 answer
  • 一、225 + 4.8<br> I don’t understand it plz help<br> (And do it step by step...)
    12·1 answer
  • the perimeter of a rectangle is 92m. the length is 10m more than twice the width. find the dimensions
    11·1 answer
  • All season the baseball team has scored at least 5 runs in each game.
    9·1 answer
  • I need help on these three PLEASE!!
    10·2 answers
  • Please help this is due tomorrow ​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!