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The interior angles of a four-sided object always at to 360 degrees. Therefore, if you know the other three angles, the solution to the fourth angle is: Angle4 = 360 - (Angle1 + Angle2 + Angle3) or... Angle4 = 360 - Angle1 - Angle2 - Angle3

Q: Ok so you have a four sided shape and iyou have 3 or the angles how do you work out the 4th angle HELP ME?

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A heptagon is a7 sided 2D shape. Hope that will help

i want the answer of this question can someone help me

Exterior angle = 180-156 = 24 degrees Number of sides = 360/24 = 15 sides. If you can't remember the formula, then remember this to help figure it out: The regular polygon can be divided into triangles (like pizza slices). Each triangle is an isosceles triangle and all of them are congruent (since it's a regular polygon). Take one of the triangles: each of the 'leg angles' will be half of the polygon angle (the leg of the triangle has bisected the polygon angle). So these two angles will add together to be the same measure as the polygon angle (call it Ap). So the other angle in the triangle is in the center and all these pizza slice angle make a circle in the middle (360°). Since the triangle sums to 180°, the angle in the middle is (180° - Ap), then you have: Number of sides = (360°) / (180° - Ap), or in this case: 360/(180-156) = 15 sides.

It is an angle more than 0 degrees but less than 90 degrees. An acute angle is any angle of between 0 and 90 degrees. A right angle is an angle that measures exactly 90 degrees. An obtuse angle is an angle that measure between 90 and 180 degrees. To remember the difference between an acute angle and an obtuse angle, think of "a cute" (acute) puppy and an large obese (obtuse) bulldog. Kind of cheesy but the words do sound alike and might help you remember

Supplementary Angles are two angles that add up to 180 degrees. Often you can find them on a straight line, however, they don't always have to be together. There is a related link that can help explain.

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two angles whose sum is 90 degrees is a complementary angle.

The name of a 12 sided figure is "Dodecagon" meaning 2+10.I will give you the angles for 12 sided object.Center angle is 30 degreesMiter angle is 75 degreesBevel angle is 15 degreesTo cut wood on a Miter saw to make a 12 sided object, the 15 degree angle is what you want to use. If you want to figure out how mathematically, here is 2 instructional sites to help:* http://www.iit.edu/~smile/ma9304.html Another site for comparison:* http://www.glencoe.com/sec/math/studytools/cgi-bin/msgQuiz.php4?isbn=0-07-829633-1&chapter=10&lesson=7&headerFile=4&state=

A heptagon is a7 sided 2D shape. Hope that will help

A 28 sided polygon is called an Icosikaioctagon This link should help: http://www.math.com/tables/geometry/polygons.htm

an angle that forms a linear pair with one of the interior angles of the trinagle.(Apex)

you can call on ark angle Micheal for corage you can call on ark angle Micheal for corage you can call on ark angle Micheal for corage

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The solid angles help us have a view of an object in three dimensions.

The inscribed angle forms the apex of the angle. It is a point. To circumscribe the point is 360 degrees. So the inscribed angle and the reflex (outscribed) angle sum to a total of 360 degrees.

I am sure that a shape with six side has 9 diagonals. (I found out cause I really wanted to help people.)

Complementary angles: Two angles that add up to a right angle (90Â°). Each angle is complement of the other.For example, the complement of a 30Â° is 60Â° (90Â° - 30Â°).Supplementary angles: Two angles that add up to two right angles (180Â°). Each angle is supplement of the other.For example, the supplement of a 30Â° is 150Â° (180Â° - 30Â°).