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
IceJOKER [234]
3 years ago
12

Find the area of an equilateral triangle (regular 3-gon) with the given measurement.

Mathematics
1 answer:
Paul [167]3 years ago
8 0

Using Heron's formula where s = 9 ...... and a = b = c = the side lengths .....we have......

A = √[s(s -a)^3] = √[4*3^3] = √[4*27] = √[4*9*3] = √[36*3) = 9√3 sq. in.

You might be interested in
(50 points) What is the value of sin J for this triangle?
weqwewe [10]

Answer:

8/17

Step-by-step explanation:

right angle box means that area is the bottom

soh cah toa

hypotenuse is 17

hypotenuse is usually the biggest number

opposite is 8

sin is opposite/ hypotenuse

sin is 8/17

6 0
3 years ago
What do you start with?<br> 6(3+8n)=210
neonofarm [45]
Always start with what’s in the parentheses:)
3 0
3 years ago
Read 2 more answers
Someone please help me, please
DENIUS [597]
110 degrees, for triangles all sides should add up to 180 degrees, no matter what type of triangle it is, hope this helps!
4 0
3 years ago
Think about how to find the area of a rectangle. A=LW and a triangle 1/2B*H. Create a problem using each formula.
WITCHER [35]

Given expressions:

  Area of a rectangle  = L W

  Area of a triangle = \frac{1}{2} B H

Problem;

Create problems using the formula;

Solution:

Problem 1; Find the area of a rectangle whose length is 10cm and the width is half the size of the length?

    Given parameters:

    Length of rectangle  = 10cm

    Width of rectangle  = \frac{1}{2} x length  = \frac{1}{2} x 10  = 5cm

So, the area of the rectangle = 10cm x 5cm  = 50cm²

2. A triangle with a base length of 30cm and a height of 2cm will have an area of what?

    Given parameters:

         base length  = 30cm

         height  = 2cm

 Solution:

   Area of a triangle  = \frac{1}{2} x b x h

   Area of a triangle  = \frac{1}{2} x 30 x 2  = 30cm²

The area of the triangle will be 30cm²

6 0
3 years ago
20 points if you answer
yulyashka [42]

Answer:

The second stove had a higher temperature when the stoves were turned off.

The first stove cooled down at a faster rate.

Step-by-step explanation:

first stove: T(t) = 180 - 2.55t can also be written as T(t) = -2.55t + 180

(180 is the y-intercept; -2.55 is the slope)

second stove = T(t) = mt + 200

(0,200) (40,130)

\frac{200 - 130}{0 - 40} = \frac{60}{-40} = \frac{3}{-2} = -1.5

T(t) = -1.5t + 200

6 0
3 years ago
Read 2 more answers
Other questions:
  • Graph the system below and write the solution { y = 1/2x - 1
    15·1 answer
  • 10q - 30 is equivalent​
    14·2 answers
  • If 39% of the sample population voted for Addair, how many of the 20,000 voters voted for Addair?
    13·2 answers
  • A recipe for cookies calls for 1 cup of butter, twice as much sugar as butter, and three times as much flour as sugar. How many
    9·1 answer
  • I need with this. Someone help please.
    7·1 answer
  • Suppose that competing hypotheses for a test are H0: p1 - p2 = 0 versus HA: p1 - p2 ≠ 0. A 95% confidence interval for the diffe
    13·1 answer
  • Which equation has an a-value of 1, a b-value of –3, and a c-value of –5?
    11·2 answers
  • I need help on these 3 questions please! ​
    9·1 answer
  • Help me PLEASE! it’s due soon (links = report )
    11·1 answer
  • What is 0.01 in standard form
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!