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
pentagon [3]
2 years ago
10

What is the area of an equilateral triangle that has a perimeter of 36 centimeters? Round to the nearest square centimeter.

Mathematics
1 answer:
Vika [28.1K]2 years ago
5 0

Answer:

(a is size of side of triangle)

the perimeter of equilateral triangle =3a

or, 36=3a

Thus, a = 13cm

area of equilateral triangle

=√3/4*(a^2 )

=√3/4*(13^2)

=73cm^2

You might be interested in
Tanmayi wants to raise $175 for a school fundraiser,She has raised $120 so far. How much more does she need to reach her goal?
vampirchik [111]
She needs $55 more dollars
7 0
3 years ago
Use Inverse operations to solve the expression. Enter your answer in simplest form. y 1 =8 16​
vredina [299]
So we are trying to get the “y” alone, so to undo the division by -8, we will multiply both sides by -8, then simplify.

(-8) y/(-8) = (-8) 1/16

y = -8/16

and simplified:

y = -1/2
7 0
3 years ago
What are the factors of m^2-12m+20
Juli2301 [7.4K]

Answer:

(m - 10)(m - 2)

Step-by-step explanation:

We need 2 numbers whose product is + 20 and whose sum = -12. They are -10 and -2.  These go into the 2 parentheses:

(m - 10)( m - 2).

4 0
3 years ago
Read 2 more answers
I need help in this question
tiny-mole [99]

Answer:

C. 12/15

Step-by-step explanation:

2/3, 6/9, and 18/27 all simplify to 2/3. 12/15 does not.

8 0
2 years ago
Can a triangle be formed with the side lenghts of 8cm, 4cm, and 12cm
ioda
No, because the sum of the measures shorter legnths of the sides must be greater than the measure of the greatest angle

4+8=12
so therefor the side legnths if you tried to make into a triangle, it would make a line 12 units long

<span>no is the answer</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • On a road, a bike sign in the shape of an isosceles trapezoid is to be painted. The sign and its dimensions are shown below. Wha
    13·1 answer
  • $59.8 Divided by $4 in long division <br><br> Please help
    9·1 answer
  • The formula for the area of a triangle is , where b is the length of the base and h is the height.
    12·2 answers
  • felipe is training to run a marathon. today he ran 24 miles in 2.5 hours. at what rate did felipe run today?
    12·2 answers
  • What is 91/125 as a percent​
    7·2 answers
  • 1. Use the number line to find the coordinate of the midpoint of segment<br> BD.
    15·1 answer
  • Find the slope:<br> (-7, 4), (13, 4)<br> O 20<br> O Zero<br> O Undefined
    9·2 answers
  • In triangle ABC, what is the measure of angle C if A = 60°, a = 9, and c = 5?
    12·2 answers
  • What is the ratio of 60:48
    12·2 answers
  • 6x+7=-5 i got it wrong
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!