2019年3月29日 · Find the area of the regular 30 -gon with radius 8 mm. Guest Mar 29, 2019. 0 users composing answers..

A polygon with 30 sides is officially called a triacontagon. However, you will most likely hear it referred to as a 30-gon or simply a 30-sided...

The number of sides of a 30-gon is, {eq}30 {/eq}. The sum of all exterior angles of any polygon (and of course, of a 30-gon) is always equal to...

2019年3月29日 · What is the area of the regular 30 -gon with radius 15 mm? 0 . 1212 . 3 .

2022年4月27日 · This will form 30 congruent triangles . Each triangle will have an included angle of 360 / 30 = 12° And the sides surrounding this angle = 15 . So the area of these 30 triangles = 30 (1/2) (15)^2 * sin (12°) = 15^3 * sin (12°) ≈ 701.7 mm^2

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2017年4月4日 · A formula to find the area of a regular polygon given the radius is: Area = r 2 · n · sin( 360 / n ) / 2 = 7 2 · 30 · sin( 360 / 30 ) / 2

2016年3月11日 · What's the sum of the measures of the interior angles of a 30-gon. Guest Mar 11, 2016. 0 users composing answers..

A regular 12-gon with center O is inscribed in a unit circle. ... this means triangle AMO is 30-60-90 with ...

2015年5月13日 · This polygon is comprised of 30 congruent triangles, each with a central angle of 12° And using trig, each has an area of..... (1/2)(20)^2 sin(12°) = 41.5823381636 sq ft. So, 30 times this = 1247.470144908 sq ft = 1247.5 sq ft (rounded to the nearest tenth)