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
irina1246 [14]
4 years ago
12

Measure of each side of an equilateral triangle is 12cm. It's area is given by

Mathematics
1 answer:
telo118 [61]4 years ago
4 0

Answer:

D

Step-by-step explanation:

The area (A) of an equilateral triangle is calculated as

A = \frac{s^2\sqrt{3} }{4} ← s is length of a side

Here s = 12, thus

A = \frac{12^2\sqrt{3} }{4}

  = \frac{144\sqrt{3} }{4}

  = 36\sqrt{3} → D

You might be interested in
4 Jillian's school is selling tickets for a play. The tickets cost $10.50 for adults and $3.75 for students. The ticket salesfor
Kitty [74]
$10.50a + $3.75b = $2,071.50 It is given that b = 82 Therefore - $10.50a + ($3.75)(82) = $2,071.50 or $10.50a + $307.50 = $2,071.50 $10.50a = $2,071.50 - $307.50 = $1,764.00 Therefore - a (number of adult tickets sold) = $1,764.00/$10.50 = 168 tickets
4 0
3 years ago
Read 2 more answers
What is the circumference of a circle with a radius of 5 m?
Lena [83]

Answer:

31.4 meters

Step-by-step explanation: use the formula 2 times pi times 5 then you just plug in 5 into the radius

5 0
3 years ago
Read 2 more answers
What percent is 18 of 20
algol13

Answer:

90%

Step-by-step explanation:

  1. \frac{18}{20} = \frac{90}{100}  
  2. \frac{90}{100} = 90%

I hope this helps!

7 0
3 years ago
Read 2 more answers
How many yards are in 3 times of 4 yards 2 foot
Len [333]
4 yards and 2 feet is equal 14 feet since each yard is made up of 3 feet.

1 yard = 3 feet.

So if we take 14 feet and multiply that by 3 we get 42 feet. 

42/3 is equal to about 14 yards in total 

So the answer is 14 yards. 
6 0
3 years ago
Hannah has 8 over 9 of a pound of birdseed. She put 2 over 3 of a pound of birdseed into her bird feeders. How much birdseed doe
Reptile [31]
8/9 - 2/3 = 8/9 - 6/9 = 2/9 of a pound left

She  had 8/9 of a pound of birdseed to begin with.  She used 2/3 of a pound of birdseed into her feeders.  You have to get a common denominator, would be 9 and when you subtract what she used from what she had you get 2/9 of a pound of birdseed left.
8 0
3 years ago
Other questions:
  • between twelve o'clock midnight and twelve o clock noon how many times are the minute hand and hour hand of a clock at right ang
    10·1 answer
  • the graph of f(x)=2^x+1 is shown below explain how to find the average rate of change between x=1 and x=3
    15·1 answer
  • Solve for the x?????????
    8·1 answer
  • In the Summer Olympic Games in rio (2016), the mens 4 by 400 meter (1600) meters in total) relay team ran the race in 2:57.30 (2
    5·1 answer
  • |-3 + 15| what is the sum (answer) ? I think it is 12 but my friend thinks it is 18. Who is right?
    10·2 answers
  • Dillard's checking account charges a $13.25 monthly service fee and a $0.24 per check fee. if Dillard writes 18 check per month,
    9·1 answer
  • 6 numbers form an arithmetic sequence with a common difference of 4. THe sum of these numbers equals 12. What are the 6 numbers.
    7·1 answer
  • Which is the best estimate for the percent equivalent to 3/8​
    5·1 answer
  • WILLL GIVE BRAINIEST!!!!!
    5·1 answer
  • A researcher is studying the relationship between the number of TVs owned by a family and the size of the family's electric bill
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!