0
Still curious? Ask our experts.
Chat with our AI personalities
RossEvery question is just a happy little opportunity.
Chat with Ross
BlakeAs your older brother, I've been where you are—maybe not exactly, but close enough.
Chat with Blake
BeauYou're doing better than you think!
Chat with BeauMore answers
Add your answer:
Earn +20 ptsQ: What is the sum of angles in a 21 sided polygon?
Write your answer...
Submit
Still have questions?
Continue Learning about Other Math
What is the sum of the interior angles of a 21 gon?
The sum of the interior angles of any regular polygon of n sides is equal to 180(n - 2) degrees. 3420 degrees
How many triangles are formed by the diagonals in a 21 sided polygon?
The number of triangles formed by the diagonals of a 21 sided polygon is C(21,3) = 21x20x19/3x2x1 = 1,330.
If a regular polygon has exterior angles that measures approximately 17.14 degrees how many sides does it have?
No matter how many sides it has, the exterior angles of a regular polygon add up to 360 degrees. So 360/17.14 = 21 sides.
What is the name of a polygon that has 3420 degrees in it?
It will have 21 sides or a 21-gon
What is a 21 sided shape called?
a decadogon
Trending Questions
What is the greatest common factor of 24 and 36 with exponets?
How can you find the sum of the angle measures in a 14 polygon?
What fraction of an hour is 28 mins?
What is 4.408 round to nearest tenth?
Which two numbers have a sum of 94 and a product of 2013?
What object is 115 mm long?
What is 8175 rounded to the nearest 10?
What does it is dearness only that gives everything its value mean?
What is y equals 3x plus 1 y equals 2x-1?
The heliocentric theory challenged the?
What is the surface area and volume of a cube with an edge of 3 cm?
What is the comparative and superlative forms of quick?
Why is dimensional analysis useful?
Concurrence of 3 altitudes of triangle?
Two numbers whose sum is 54?
How do you make integer word problems?
What are the first five nonzero multiples of 30?
Is 10 divided by 10 a hundred?
How do you write mixed numbers as an inproper fraction?
Father of maths?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.