momobear0501 momobear0501
  • 26-05-2021
  • Mathematics
contestada

If the diameter of a circle is 20 cm, what is the area?
O
10п cm2
O 20 п cm
50 п cm2
O 100 п cm2

Respuesta :

OfficialRoytriever OfficialRoytriever
  • 26-05-2021

Answer:

A = 100 pi cm^2

Step-by-step explanation:

A = pi(r^2)

A = pi(10^2)

A = pi(100)

A = 314.16 '

Convert to pi units.

314.16 ---> 100pi cm^2

Answer Link
Аноним Аноним
  • 26-05-2021

Answer:

Half of 20 is 10(New radius)

10^2(radius squared) = 100

100pi is your next step, which is 100π cm2

Formula area of a circle:

πr^2

pi(3.14 or 22/7 depending on what they tell you to use for pi) x radius(half of your diameter or given radius) squared(to the power of 2)

Pi x radius being squared

Answer Link

Otras preguntas

Help with problem 14?!
what is the 23rd term from these sequences   5,6,7,8,9
a bank allows university students a 1000 overdraft facility on their bank accounts. in one month a student was 675 overdrawn. the next month the same student
Adaptations for water in fish include a. several fins for swimming. b. a system of muscles for movement. c. gills that allow them to “breathe” oxygen in water. d.
What ingredients are needed to make GHB?
How do I solve this complex multi-step equation 2x + (-2 )= 10x - 4 ?
what is 3x+4y=2 in slope intersect form
what caused the dust bowl
What ingredients are needed to make GHB?
determine the equation in the form y=mx+b for passing through each pair of points (0,8) and (4,3)