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
JulsSmile [24]
4 years ago
13

Find the sum of the measures of the interior angles of a 21-gon.

Mathematics
2 answers:
agasfer [191]4 years ago
6 0
Well you have to use the equation     (n-2(180))  where n represents the number of sides  

so-    21 - 2 = 19      then multiply    19 x 180 = 3420

so the sum of all the interior angles in a 21-gon is equal to    <u>3420 degrees</u>
Sav [38]4 years ago
5 0
We know that
Sum of the measures of the interior angles of a polygon of n<span> sides is equal to
</span>
(n-2)*180

where
n is <span>the number of sides

in this problem
</span>n=21 \\ (21-2)*180=3420°

Hence

sum of the measures of the interior angles of a 21<span> sided polygon is
</span>3420°
You might be interested in
And this problem your multiplying 12 by 6 was 12 called in this math problem
Lynna [10]

To multiply one number ( a multiplicand ) by another ( a multiplier ) means to repeat a multiplicand as an addend times. The result of multiplying is called a product. The operation of multiplication is written as: 12 x 6, or 12 * 6

Multiply 12 by 6

6 is called the Multiplier

12 is called the Multiplicand

72 is called the Product

Therefore, a multiplicand and a multiplier are called factors or multipliers.

Hope that helps!!!! : )

5 0
3 years ago
julie bought 19 beads at the craft store now she has 36 beads how many beads did she have before she went to the craft store
Lubov Fominskaja [6]
To get the answer for how many beads she had before she went to the craft store you do 36 - 19 = 17 and you get 17 beads that she had before she bought the new ones . Your answer is 17. To check ypur answer add 17 + 19 and you get 36
7 0
3 years ago
What is the volume of a cylinder with a radius of 3 inches and a height of 5 inches? Round to the nearest tenth if necessary.
Sergio [31]

The volume of the cylinder in discuss in which case, the radius of the cylinder is 3 inches and the height is inches is; V = 141.3in³.

<h3>What is the volume of the the described cylinder?</h3>

The cylinder in discuss according to the task content has radius, 3 inches and height, 5 inches.

Since the volume of a cylinder by convention is given as; V = πr²h

Therefore, the volume of the cylinder in discuss is;

V = π (3²)×5

V = 3.14 × 45

V = 141.3in³

Read more on volume of a cylinder;

brainly.com/question/971817

#SPJ1

5 0
2 years ago
How do i write 7 37/40 as a decimal?
tensa zangetsu [6.8K]
Your answer would be
7.925 
7 0
3 years ago
Read 2 more answers
What is 18 divided by negative 3
sweet-ann [11.9K]
18 / -3 = -6

answer

<span>negative 6 is 18 divided by negative 3
</span>
hope it helps
6 0
4 years ago
Read 2 more answers
Other questions:
  • At a certain hospital, the probability of a child being born female is 0.51. If 80 babies are born on the a certain day, the pro
    9·1 answer
  • 49 POINTS PLEASE HELP! IM SO CONFUSED!<br><br> Show your work/explain your answer. THANK YOU!!!!
    8·2 answers
  • Which classification best represents a triangle with side lengths 6 cm 10 cm and 12cm ?
    5·2 answers
  • Based on data set 3 in appendix b, body temperatures of healthy adults have a bell-shaped distribution with a mean of 98.20°f an
    13·1 answer
  • Please help asap 50 points
    9·2 answers
  • Simplify write in factored form
    13·1 answer
  • Pre-Calc, please help! Will give brainliest!
    13·1 answer
  • Solve the following a/5 + 3=8
    12·1 answer
  • Which of the following statements about a negatively skewed distribution is true? a) The distribution of the data tails to the r
    5·1 answer
  • Please need help:) what is the length of XZ
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!