Mathematics: Find the area of the regular 30-gon with radius 10 mm. A~ mm2 (Do not round until the final answer. Then round to the nearest tenth as needed.)

Find the area of the regular 30-gon with radius

Enaszr9657

23.01.2022

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)

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abby5978

01.07.2020

We can form this algebraic equation to work the equation out:

16 + 2x = -24
2x = -40
x - 20

Hope I helped.

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