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
Drupady [299]
3 years ago
8

What is the perimeter of a square if the length of one of the diagonals is 12 cm?

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
7 0

Answer:

Step-by-step explanation:

Use Pythagorean theorem to find the length of the square.

Length of the square = a

a² +a² = diagonal²

2a² = 12²

2a² = 144

a² = 144 ÷ 2

a² = 72

a =\sqrt{72}\\\\  = \sqrt{2*2*2*3*3}\\\\ = 2*3\sqrt{2}\\\\a = 6\sqrt{2}\\\\\\\\Perimeter= 4a\\\\ = 4*6\sqrt{2}\\\\= 24\sqrt{2} cm

You might be interested in
If 5 becomes 11 and 12 becomes 25, what does 15 become?
Amiraneli [1.4K]

Answer:

31.

Step-by-step explanation:

5+5 = 10 + 1 = 11

12 + 12 = 24 +1 = 25

15 + 15 = 30 + 1 = 31

I don't know I tried to see if that was the pattern. It checks out math wise.

5 0
3 years ago
Read 2 more answers
Can you answer this math homework? Please!
pav-90 [236]

Answer:

(-4.5, 4.25)                The first one.

Step-by-step explanation:

Plug in -4.5 in for x and 4.25 for y in BOTH problems.  When you plug them in and they both work out for BOTH problems then its the answer.

7 0
2 years ago
If your credit card is stolen and the thief runs up a total debt of $1,000, but you notify the issuer of the card as soon as you
Yuki888 [10]

Answer:

50 dollars

Step-by-step explanation:

college website

3 0
2 years ago
HOW TO MAKE 65/390 AN EQUIVALENT RATIO
frozen [14]
The answer is 1:6.
I wrote down the solution in the picture.

8 0
3 years ago
Read 2 more answers
Which of the following is a step in constructing angle bisectors using a compass and straight edge? a Construct a copy of the li
motikmotik

Answer:

start with a line segment to divide into equal parts

Step-by-step explanation:

that's the first step you take before you make the angle bisector because there's no point in doing the other steps before that

8 0
2 years ago
Read 2 more answers
Other questions:
  • Expand and simplify 2/5(p+15)-1/3(9+6p)+4/5p
    7·1 answer
  • What is 4.4822x10 in scientific notation
    11·1 answer
  • The weight of an adult blue whale is 9 × 104 kilograms; the weight of an elephant is 3 × 103 kilograms. How many times heavier i
    5·1 answer
  • 82,321 to the nearest hundred ?
    8·1 answer
  • 800 people went to the community library last week. This week that number increased by 15% how many people went to the library t
    7·2 answers
  • 13. Find the value of x.<br> 124<br> 136<br> 132<br> 158<br> 129<br> 142<br> 116<br> need ASAP!!
    8·2 answers
  • Pleaseee helppp yalllll
    9·1 answer
  • Solve for x. <br>5(x - 10) = 30 – 15x<br>A. x = 1 <br>B. x = 4 <br>C. x = 5 <br>D. x = 8​
    15·2 answers
  • Can someone help me with this pls
    9·2 answers
  • Greg evaluated his spending and found that he was spending about $50 more per month on utilities than he has budgeted. He can tr
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!