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Q: Equation on how to find no of sides using interior angle 120?

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for a polygon you use order of operations with this equation: [# of side subtracted by 2] multiply by 180= your answer

A decagon is a polygon with 10 sides. By using the interior and exterior postulates, you can find the angle measures, which happen to be 144 and 36 degrees respectively.

We have the interior angle 144âˆ˜ . We can find the number of sides using the formula as follows. Thus, the polygon has 10 angles and 10 sides.

The sum of all the interior angles of any octagon is 1080 degrees, so that means that each angle is 135 degrees. You can find the measure of all the interior angles of any ploygon by using this equation: (number of sides in the polygon subtracted by 2) all multiplied by 180.

A regular polygon with interior angles of 144 degrees has 10 sides. Using the fact that a regular n-gon has interior angles of degree (n-2)*180/n, you can solve for the number of sides fairly easily.

When measuring an angle you have to measure the sides using a protractor.

A right angle triangle has three sides and three interior angles one of which is 90 degrees. The names of its sides are the adjacent the opposite and the hypotenuse and using the 3 trig ratios we can find the interior angles or lengths of the sides depending on the information given.Tangent angle = opposite/adjacentSine angle = opposite/hypotenuseCosine angle = adjacent/hypotenuseIf we are given the lengths of 2 sides we can work out the angles with the above ratios.If we are given a length and an angle we can work out the lengths of the other 2 sides by rearranging the above ratios.

a circle is 360 degrees. so whatever exterior angle u have u can subtract it from 360 to see what the interior angle is!

You would need to know the interior angle because 180-interior angle = exterior angle

A pentakaidecagon (or pentadecagon) is a 15-sided figure, using the theorem:[180 x (n-2)]/n to find the angle measurement of each angle (where n is the number of sides) we get 156 degrees.

Let S be the sum of the measures of all the interior angles, in degrees. Then the number of sides is S/180 + 2.

The measurement of an interior angle of a pentagon depends on whether the pentagon is a "regular pentagon". The sum of the measures of the interior angles of any polygon can be calculated using the formula (n-2)180, where n = the number of sides. If the pentagon is a regular pentagon, then all of the interior angles are congruent (i.e. : 144 degrees). Interior angle is the inside angle of any angular object. A triangle for instance has three outside angles and three interior angles, the angles of the points from the inside.

The formula is normally: (n-2)*180 = sum of interior angles whereas 'n' is the number of sides of the polygon

The name tells you how many sides. If you are given one external angle, say A, then you know that the number of sides multiplied by A =360 since the sum of the exterior anlges is 360. If you are given the sum of the interior angles, you can find the number of side using the formula that sum of interior angles =(number of sides-2)180 degrees.

It is a triacontagon, or 30-sided shape.The formula for one interior angle of a regular n-sided polygon is 180(n-2)/nwhere 180 (28) / 30 = 168*You can QUICKLY and EASILY find the answer using the formula for one exterior angle : it is 360/n360/30 = 12 and the interior angle is 180-12 = 168.The algebraic equation is(180-168) n = 360

Exterior angle: 180-157.5 = 22.5 degrees Number of sides: 360/22.5 = 16 Using the diagonal formula: 0.5*(162-48) = 104 diagonals

using the equation (A-2)180 Where A is the number of angles in a polygon with equivalent angles. (8-2)180 (6)180 1080 degrees total. 1080 / 8 = 135 degrees per angle. 1080 is the total degrees of all interior angles. 8 is the number of angles.

If the sides of a right angle triangle are 27 ft and 36 ft then by using Pythagoras' theorem its hypotenuse works out as 45 ft

If you have the length of two of the sides and one other angle you can use the law of sines.

You cannot. A parallelogram can be flexed: the angles can be altered without affecting the lengths of the sides.

It is a trigonometric equation for a right triangle, to find a non-right-angle angle. Using SOHCAHTOA, it is the opposite side divided by the adjacent angle

By using formula: (n-2)*180 = sum of interior angles whereas n is number of sides And so: (14-2)*180 = 2160 degrees

The 4 interior angles of any 4 sided quadrilateral add up to 360 degrees and using a protractor will prove it.

Sum of interior angles of any polygon is 180 degrees.Another Answer:-The interior angles of a polygon with 33 sides add up to 5580 degrees using the formula (33-2)*180 = 5580

The formula for determining the measurement of the interior angle of a general polygon with n sides is: 180°(n - 2)/n Given the 6-sided polygon, let n = 6. Then, by using the form above, we obtain: 180°(6 - 2)/6 = 30° * 4 = 120° Therefore, 120° is the measurement of the interior angle of a 6-sided regular polygon.