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
kramer
3 years ago
12

If a regular polygon has 40 sides the measure of each interior angle will be

Mathematics
2 answers:
BabaBlast [244]3 years ago
7 0
The formula for interior angles is:

S=180(n-2) n=number of sides s=sum of interior angles.

Using this, plug in 40 as <em>n </em>and find <em>s</em>.
If you do that, you will get <em>s=6840.
</em>Now that you have the <u>sum</u> of interior angles, you have to find one single measure of an angle in your regular polygon. 
<em>If 40 equal sides in a regular polygon results to 6,840°, then one vertex should be the sum of the interior angles divided by the total number of sides.
</em>
In other words, you will have to find 6840°/40. You will get 171°.  That means that the measure of a single interior angle is 171*.

ankoles [38]3 years ago
5 0
Each exterior angle  = 360 / 40  = 9 degrees. So each interior angle = 180 - 9
 = 171 degrees.
You might be interested in
2. The center of a circle is at (4,-5). The radius of the circle is 10 units. Write the equation of the
abruzzese [7]

Answer:

Step-by-step explanation:

8 0
2 years ago
Alsion saves $29.26 each month. How many months will it take her to save enough money to buy a stereo for $339.12?
Darya [45]

Answer: 12 months (1 year)

We know that Alision gains $29.26 each month. She wants to buy a stereo for $339.12

You want to divide $339.12 with $29.26 to find the total months.

339.12 / 29.26 = 11.6

CHECK:

You want to round up, since she needs the money to buy a stereo. She's allowed to have more money.

29.26 * 12 = 351.12

It will take Alision 12 months (1 year) to buy her stereo.

5 0
3 years ago
5th grade math. correct answer will be marked brainliest
kipiarov [429]
The correct answer is 67 ur welcome
4 0
3 years ago
Read 2 more answers
Anything will help please
svp [43]

The way that I memorised how to do sin, cos, and tan is by the following: SOH, CAH, TOA

SOH = Sin is OPPOSITE / HYPOTENUSE

CAH = Cos is ADJACENT / HYPOTENUSE

TOA = Tan is OPPOSITE / ADJACENT

For example if we were to solve question 5

Sin T = 6 root 2 / 19

Cos T = 17 / 19

Tan T = 6 root 2 / 17

Repeat the steps for question 6

For the rest of the questions (7,8,9) you have to take the information given and figure out if you should us Sin, cos, or Tan. then plug the numbers in the calculator and while doing sin ^ -1, cos ^ -1, tan ^ -1

for example on question 7, to find the angle x they have given you the hypotenuse and the adjacent side so

cos x = 9 / 18

to find x plug: cos^-1 (9/18) in the calculator

8 0
2 years ago
Eli and Angela are saving money to buy their grandparents an anniversary gift. Eli has saved 8 more than 1/3 of Angela's savings
Trava [24]

Answer:

$10

Step-by-step explanation:

Let a = the amount Angela has saved.

Let e = the amount Eli has saved.

"Eli has saved $8 more than 1/3 of Angela's savings."

e = a/3 + 8

"If they each save $10 more." then

Eli will have: e + 10

Angela will have a + 10

"Eli will have saved $4 more than Angela's savings."

e + 10 = a + 10 + 4

This equation simplifies to: e = a + 4

We have a system of two equations in two variables.

e = a/3 + 8

e = a + 4

Since both equations are solved for e, we just equate the right sides.

a/3 + 8 = a + 4

Subtract a/3 from both sides. Subtract 4 from both sides.

a/3 - a/3 + 8 - 4 = a - a/3 + 4 - 4

4 = (2/3)a

Multiply both sides by 3/2

(3/2)4 = (3/2)(2/3)a

6 = a

a = 6

Angela has $6.

e = a + 4 = 6 + 4 = 10

Eli has $10.

4 0
3 years ago
Other questions:
  • Find the uncertainty in a calculated average speed from the measurements of distance and time. Average speed depends on distance
    9·1 answer
  • Three roommates share their monthly rent payment in a ratio of 7 : 8 : 10. If the monthly rent is $1,200, then what is the amoun
    5·1 answer
  • If u multiply 5x8 the.l subtracted the answer of the multiplication problem from 16 whiny u get 12!?
    15·1 answer
  • -4y - 11x = 36 -10y - 10x = 20 ​
    11·1 answer
  • Which property is used in the first step to solve this equation
    11·1 answer
  • Students in a 6th grade class are raising money for an end-of-year camping trip. So far, they have raised $240. This is 2/5 of t
    10·1 answer
  • 2.1.2, 2-29 complete the scale on each graph by labeling the remaining tick marks
    14·1 answer
  • Five rooms in a house need to be painted. Each room can be painted white or yellow.
    8·1 answer
  • Refer to the figure.
    10·2 answers
  • 42. Rosa incorrectly calculates the product of 4.162 and 2.5 as shown.Line 1:4.162Line 2: X 2.5Line 3: 20810Line 4: 83240Line 5:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!