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
natali 33 [55]
2 years ago
14

The side of a square is 2.5 cm. Find its perimeter and area.​

Mathematics
1 answer:
Neko [114]2 years ago
3 0

Answer:

Perimeter = 10 cm

Area = 6.25 cm²

Step-by-step explanation:

\bf \: Given :

\sf \: Side  \:  of \:  the \:  square = 2.5 \: cm

\bf \: To \:  find:

\rightarrow \sf \: Perimeter

\sf\rightarrow Area

\bf \: Solution :

\rm \: First \:  w e \:  need \:  to \:  find  \: out  \: the  \: perimeter \:  o f \:  it.

So to find the Perimeter of the square, we'll use this formula :

\boxed{  \sf\longrightarrow \: Perimeter = 4 \times side}

\bf \: Step  \: 1 : \rm \:  Put \:  the  \: value  \: of   \: side \:  of \:  the  \: square :

\sf\longrightarrow \: Perimeter = (4 \times 2.5)cm

\bf \: Step\;2 : \rm Multiply :

\sf\longrightarrow \: Perimeter  = 10 \: cm

Hence, the perimeter would be 10 cm .

\rule{225pt}{2pt}

\sf \: Now,\; let's\; find  \: the  \: Area .

We know that the formula of Area to find the square is,

\boxed{ \sf \longrightarrow \: Area = (side) {}^{2} }

Note : The answer would always be in cm².

\bf Step\;  1  :\rm Put\;  the\; value \; of\;  side \; of \; the\; square :

\sf\longrightarrow{Area} = (2.5) {}^{2}  \: cm {}^{2}

\sf\longrightarrow{Area} = (2.5 × 2.5 ) \: cm {}^{2}

\bf \: Step\;2 : \rm Multiply :

\longrightarrow\sf \: Area = 6.25 \: cm {}^{2}

Hence, the area of the square would be 6.25 cm².

<em>We are done !</em>

\rule{225pt}{2pt}

I hope this helps!

Let me know if you have any questions.

:D

You might be interested in
Arrange the decimal fractions in descending order.<br>1.3 0.13 3.1 0.31<br>​
SVEN [57.7K]

Answer:

0.13 0.13 3.1.3

Step-by-step explanation:

Hope it's answer you plz mark as Brainlist

3 0
3 years ago
Show an example<br> of a ratio as a fraction in simplest form
sveta [45]

Answer:

an example of a ratio as a fraction in its simplest form is .5 is 1: 2.

7 0
2 years ago
A teacher has 40 learners in her class. She chooses 1% to clean her board. Is this possible?​
worty [1.4K]

Step-by-step explanation:

No, 1% of 40 is the same as 40% of 1. Which is 0.025% You cant have 0.025% of a learner or a human so this isn't possible.

7 0
3 years ago
On Wednesday, Danielle skated 2/3 of the way around the track in 2 minutes. Her younger brother skated 3/4 of Danielle's distanc
katen-ka-za [31]
75 percent of 2/3

Is 0.5 of the way
4 0
3 years ago
Can someone help me
erik [133]

Answer:

   6 < x < 23.206

Step-by-step explanation:

To properly answer this question, we need to make the assumption that angle DAC is non-negative and that angle BCA is acute.

The maximum value of the angle DAC can be shown to occur when points B, C, and D are on a circle centered at A*. When that is the case, the sine of half of angle DAC is equal to 16/22 times the sine of half of angle BAC. That is, ...

  (2x -12)/2 = arcsin(16/22×sin(24°))

  x ≈ 23.206°

Of course, the minimum value of angle DAC is 0°, so the minimum value of x is ...

  2x -12 = 0

  x -6 = 0 . . . . . divide by 2

  x = 6 . . . . . . . add 6

Then the range of values of x will be ...

  6 < x < 23.206

_____

* One way to do this is to make use of the law of cosines:

  22² = AB² + AC² -2·AB·AC·cos(48°)

  16² = AD² + AC² -2·AD·AC·cos(2x-12)

The trick is to maximize x while satisfying the constraints that all of the lengths are positive. This will happen when AB=AC=AD, in which case the equations be come ...

  22² = 2·AB²·(1-cos(48°))

  16² = 2·AB²·(1 -cos(2x-12))

The value of AB drops out of the ratio of these equations, and the result for x is as above.

4 0
3 years ago
Read 2 more answers
Other questions:
  • A study conducted at a certain college shows that​ 65% of the​ school's graduates find a job in their chosen field within a year
    8·1 answer
  • jake weighs 150.7 lbs with his boots on, and 144.9 lbs without his boots what is the weigh of each boot
    13·1 answer
  • Passing through (1,9),slope=2
    7·2 answers
  • At the Mobil Station on Long Beach Road, it costs $65 for 18 gallons of unleaded gasoline. If you only have $50. how many gallon
    12·2 answers
  • A total of 22 dimes and nickels have a value of $1.90. If d represents the number of dimes and n represents the number of nickel
    14·1 answer
  • I'M IN A TIMED TEST... HELP PLZ!!!The volume of this sphere is StartFraction 500 pi Over 3 EndFraction cubic inches. What is its
    12·2 answers
  • Mrs.jeffries has 12 girls out of 16 students on the student council.The earth day committee has 4 girls out of the 8.Are the rat
    10·1 answer
  • Which statement compares the two numbers correctly?
    10·1 answer
  • Evaluate the following equation for the given x value. Round your answer to
    9·1 answer
  • Colin borrowed some money at 7.16%/a compounded quarterly. Three years later, he paid $5000 toward the principal and the interes
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!