What is another name for a regular quadrilateral? What is the sum of the angle measures of a regular quadrilateral?
2007-03-22 16:41:31 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
A regular quadrilateral means that it is equilateral (all 4 congruent sides) and equiangular (all 4 congruent angles). So the only figure that is that ALWAYS is a square. A rhombus or rectangle can be regular, if it is a square.
The sum of all angles in a quadrilateral is 360°, which is a geometric conjecture. In a regular quadrilateral, each angle measure is 90º.
2007-03-22 16:51:35 · answer #1 · answered by Cameron K 2 · 1⤊ 0⤋
A regular polygon is a polygon with all sides and angles equal. So a regular quadrilateral has to be a square. A rhombus is the only type of quadrilateral with all sides equal. But all the angles need not be equal. A square is a rhombus with all angles 90 degrees. So a square is the only regular quadrilateral
A square or any quadrilateral for that matter has 4 sides. There is a formula for finding out tge sum of all the angles
n = 4
Sum of all angles = 180(n - 2)
= 180(4 - 2)
= 180 * 2
= 360 degrees
The formula can also help find number of sides when sum of angles is given.
2007-03-22 17:16:38 · answer #2 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 0⤋
Squares, Rectangles, Trapezoids and other 4-sided shapes are regular quadrilaterals . The sum of their angles is always 360 degrees.
2007-03-22 16:46:06 · answer #3 · answered by Willi D. 1 · 0⤊ 1⤋
for the second part of your question:
(n-2) x 180
so in this case, a quadrilateral has 4 sides so...
(4-2) x 180
= 360
(N = number of sides)
2007-03-22 16:46:09 · answer #4 · answered by Hina 2 · 0⤊ 0⤋
quadrilateral names:Square,rectangle,rhombus,trapizoid. =360 degrees.How old are you?
2007-03-22 16:51:42 · answer #5 · answered by Jebrael Fernandez 1 · 0⤊ 2⤋