Multiply it by its self 3 times for example 2 to the square root of 3 2x2x2
A stop sign shape i think
Factor out 12x^3y^2
12x^3y^2(3y^2+5x^ 2 y z^2 -1)
ANSWER
56.1 square inches.
EXPLANATION
The area of this triangle can be calculated using the formula,

where a=8in.
b=14.2 in.
and C=99° is the included angle.
We plug in these values to obtain,


We round to the nearest tenth to get,
56.1 sq. inch