Is it possible to have a concave quadrilateral

Viewed 1k times. What is the answer to the question, and what is the proof? Moreover, is there a more general result like: It is impossible to partition a convex set into a finite number of regular, connected non-convex sets? Answer: NO What happens if we remove the finiteness assumption? Community Bot 1. Beni Bogosel Beni Bogosel It's easy to partition a square into two non-convex pentagons. Is it even possible to construct a bounded convex set as an infinite union of non-overlapping concave quadrilaterals?

Good question! Add a comment. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more.

Correct way to find the area of a concave quadrilateral in co-ordinate geometry using triangles. Ask Question. Asked 3 years, 3 months ago. Active 3 years, 3 months ago. Viewed times. Any quadrilateral can be split into two triangles but you have to be careful how you chose the diagonal.

We have two diagonals, each creates two triangles. Calculate areas of four triangles and calculate area of a quadrilateral. The complement of an angle is three times the measurement of the angle. Find the measurement of the larger angle.? Is it possible to have a quadrilateral with a reflex angle and an obtuse angle? What is the measurement of the 3rd angle for a triangle given both angle measurement 54 degrees?

What is the total angle measurement of a hexagon? Can a quadrilateral be made with 3 acute angles and 1 right angle? What is the measurement of the fourth angle of a quadrilateral if the others measure 60 degrees degrees and 90 degrees? What is angle measurement of about degrees? A quadrilateral has angle measures in a triangle are 60 degrees and 60 degrees what is the measure of the third angle? How do you determine the measurement of angle of a quadlilateral?

What is the size of an angle of a regular quadrilateral? What are the four angle measurements of a quadrilateral? Trending Questions. Give me food and I will live give me water and I will die what am I? What is bigger than an asteroid but smaller than Mercury and farther from the sun than Neptune? Has a human ever been mailed via the United States Postal Service? Still have questions?

Find more answers. Any quadrilateral-shape that is not convex is thus a concave quadrilateral. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. About us Contact us. All rights reserved. Reproduction in whole or in part without permission is prohibited. Table of Contents.