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
VLD [36.1K]
3 years ago
8

Find the sum of the interior angle measures of a convex 21-gon

Mathematics
1 answer:
Advocard [28]3 years ago
7 0

Answer:

  3420°

Step-by-step explanation:

The sum of angle measures of an n-gon is ...

  angle total = (n-2)×180°

For n = 21, the angle total is ...

  21-gon total = (21 -2)×180° = 3420°

You might be interested in
Helppp meee pleaseeee!!!!
never [62]

Answer:

each triangle should weigh 2.5!

Step-by-step explanation:

each sides are equal. the side with only squares weighs 25. the squares on the opposite side weigh 10. 25-10 is equal to 15. there are 6 triangles. 15 divided by six gets you 2.5

8 0
2 years ago
Read 2 more answers
The sum of two consecutive numbers is 77. The difference of half of the smaller number and one-third of
diamong [38]

Answer:

so x+y=77

1/2x-1/3y=6

6 0
3 years ago
Anna is making a birthday hat from a pattern that is 3/4 of a circle of colored paper.If anna's head is 7 inches in diameter,wil
lara31 [8.8K]
I dont think it would it might be to small.
7 0
2 years ago
Help with my homework
irinina [24]
The answer is B, there’s no solution.
6 0
2 years ago
Many flags are stored in a wooden triangular shaped box. How much wood is needed to go around the outside of the frame? ​
Lapatulllka [165]

i uploaded a vid on this here

https://www.you tube.com/watch?v=dQw4w9WgXcQ

its actually c tho..

8 0
3 years ago
Other questions:
  • Factor the quadratic expression
    9·1 answer
  • Five consecutive odd integers whose sum is 85
    7·1 answer
  • How do you find rate
    6·1 answer
  • Write a numerical expression that represents the quotient of 85 minus 7 and 19
    9·1 answer
  • Help please!!!!!!!!!!!!!!!!!!
    12·2 answers
  • Which numbers are factors of 4? Select all that apply.<br><br> 1<br> 4<br> 2<br> 3
    15·2 answers
  • A company finds that if they price their product at $ 45, they can sell 110 items of it.
    8·1 answer
  • Emma borrowed $89.40 from her sister. She determines that she can pay her back the total over six months. Which number reflects
    6·1 answer
  • Kailey is thinking of two numbers. The larger number is equal to twice the smaller increased by 12. Two times the smaller number
    8·1 answer
  • Select the correct answer
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!