Expression: 8m+10m+10m+18m
Perimeter: 46
Radii and chord form an equilateral triangle. The angle of the larger segment is

.
The length of the larger segment is
An explicit formula<span> designates the n</span>th<span> term of the </span>sequence<span>, as an expression of n (where n = the term's location). It defines the </span>sequence<span> as a </span>formula<span> in terms of n.</span>
We will turn the left side into the right side.

Use the identity:



Now use the identity
solved for sin^2 x and for cos^2 x.




The answer is B)190.08 cm2
(12×6)+(12×4.8)+(12×3.6)+((3.6×4.8)/2)+((3.6×4.8)/2)