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
muminat
3 years ago
6

Find the area of a circle with diameter 10cm use the value 3.14

Mathematics
2 answers:
katrin2010 [14]3 years ago
7 0

Answer:

<h2><em>7</em><em>8</em><em>.</em><em>5</em><em> </em><em>cm^</em><em>2</em></h2>

<em>solution \\ diameter = 10 \: cm \\ radius =  \frac{10}{2}  = 5 \: cm \\ area \: of \: circle = \pi \:  {r}^{2}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 3.14 \times  {5}^{2}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 3.14 \times 5 \times 5 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 3.14 \times 25 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 78.5 {cm}^{2}</em>

<em>hope </em><em>this </em><em>helps.</em><em>.</em><em>.</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em><em>.</em>

mafiozo [28]3 years ago
3 0

Answer:

78.5 cm

Step-by-step explanation:

The area of a circle is represented by A = πr². Since we are replacing the value of pi(π) with 3.14, and the diameter is 10, meaning the radius(r) is 5, we can plug both values into the equation, to get A = 3.14(5^2). This simplifies to 78.5.

You might be interested in
AB = x + 8
vivado [14]

Answer: The length of BC is 7

Step-by-step explanation: Assuming the lengths of the opposite sides of the quadrilateral are congruent, then

AB=DC and

AD=BC

Inputting the values of AB, DC and AD as given in the question:

x + 8 = 3x ...(1)

x + 3=? ...(2)

We have to solve for the value of x to get the actual lengths and thus ascertain BD.

From equation (1):

8 = 3x - x

8 = 2x

8/2 = x

Therefore, x = 4.

If x = 4 then equation(2) would be

4 + 3= 7.

Hence, the actual lengths of the quadrilateral are:

AB = 4 + 8. DC = 3(4)

=12. =12.

AD = 4 + 3. AD = BC

= 7. Therefore, BC = 7.

Hence, it is confirmed that quadrilateral ABCD is a parallelogram since both the opposite sides are proven to be congruent.

3 0
3 years ago
How many permutations are there of the letters in the word surprise?
azamat
Surprise, there 8 letters.
So, 8*7*6*5*4*3*2*1= 40, 320
5 0
3 years ago
Marla bought 7 boxes. A week later, half of all her boxes were destroyed in a fire. There are now only 22 boxes left. How many d
Alchen [17]

She should have started with 44 boxes

3 0
3 years ago
Read 2 more answers
Add one and one tenths equals three and one half
navik [9.2K]

Answer: 12/5  or  2  2/5

Step-by-step explanation: 7/2 - 11 /10

6 0
3 years ago
Which equation is the inverse of y = x2 – 36?
Sholpan [36]
Its B.y=±√​n+36​​​       

i hope that helps 
3 0
3 years ago
Read 2 more answers
Other questions:
  • Please help fast. J hjddhdhhfhdhdhdhdhdhdhdhdhdjddhd
    5·2 answers
  • 3.
    13·1 answer
  • ENTER numbers into the table so that the paired values are in a proportional relationship.
    12·1 answer
  • HELP WILL GIVE BRAINLIEST! RATE AND SAY THANKS!!
    9·1 answer
  • I need help with all of the odd numbers
    6·1 answer
  • What are the solutions to the quadratic equ ton x2 – 16 = 0?
    10·1 answer
  • The graph below shows how money has been budgeted for a certain company
    8·1 answer
  • Eric drove 248 miles in 4 hours. If he continues to travel at the speed, how far will he go in 7 hours and 30 minutes?
    11·2 answers
  • Write this essay for me
    12·2 answers
  • This is due in 10 minutes please help me
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!