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If you mean a regular 9 sided nonagon

Total interior angles are (9-2)*180 = 1260 degrees

Each interior angle is 1260/9 = 140 degrees

Q: How do you find the measure of each interior angle of a ngon?

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Pentagon = 5 sides.For regular pentagon: 360/5 = 72180 - 72 = 108 degrees at each interior angle.For non-regular pentagons, each interior angle may differ but the sum of the interior angles will be the same as a regular pentagon = 5 x 108 = 540 degrees.

156 degrees Sum of interior angles of a polygon=180(n-2), where n is the number of sides. To find one interior angle's measure, divide by the total number of angles, which is also the total number of sides.

Hexagon has 6 sides so 360/6 = 60 degrees interior angle therefore exterior angle = 360 - 60 = 300 degrees

Each interior angle of a regular hexagon measures 120 degrees. It has a total of 720 degrees of interior angles and a total of 360 degrees of exterior angles.

If you absolutely needed to measure an angle to find out its degree measure, you would use a protractor.

Related questions

Each interior angle measures 162 degrees.

8100

128.571428 repeating

that's geometry so the formula to find the measure of each interior angle of a regular polygon is: Ia=stands for internal angle Ia=(n-2)180 ---------- n that's the formula.

360/number of sides and deduct the quotient from 180 which will give the measure of each interior angle

It is: 360/5 = 72 degrees for each exterior angle and each interior angle will be 108 degrees

The only way to do it is to measure the angles, There is no formula that will give you the measure of an interior angle of any shape unless it happens to be regular. And there is nothing in the question to suggest that the shape might be regular.

a 7 sided polygon is heptagon and the interior angle of it is 128.57 degrees.

An exterior angle of a regular polygon and its corresponding interior angle = 180° If an exterior angle is 1/8 of the interior angle (A) then A + A/8 = 180 : 9A = 1440 : A = 160 Each exterior angle is thus 180 -160 = 20° The number of sides = 360 ÷ exterior angle = 360 ÷ 20 = 18

A regular polygon has sides of equal length, as well as interior angles of equal measure. But for any regular polygon, the sum of the measures of the exterior angles is 360 degrees. You can use this information to find out the measure of an interior angle, because the sum of the measures of each interior/exterior pair of angles is always 180 degrees. So to find the answer to this problem, divide 360 by 7. Each exterior angle is about 51.4 degrees. Subtract that number from 180. Each interior angle is about 128.6 degrees.

40 sides

A regular nonagon is a shape with 9 equal sides, right? Well, with the equation (n-2)180, where n is the number of sides, you can find the sum of the interior angles. Then you divide that number by n to get the measure of each interior angle. You do the rest. If your in A+:140'