Answer:
Actually it's not polygon. it's a nonagon. With r=8.65mm″, the law of cosines gives us side a:
a=√{b²+c²−2bc×cos40°}
a=√{149.645−149.645cos40°}
Area Nonagon = (9/4)a²cos40°
=9/4[149.645−149.645cos40°]cot20°
=336.70125[1−cos(40°)]cot(20°)
Applying an identity for the cos(40°) does not get us very far…
= 336.70125[1−(cos2(20°)−1)]cot(20°)
= 336.70125[2−cos2(20°)]cot(20°)
= 336.70125[2−(1−sin2(20°))]cot(20°)
= 336.70125[1+sin2(20°)]cos(20°)sin(20°)
= 336.70125[cot(20°)+sin(20°)cos(20°)]mm²
41 good luck buddy!!!!!!!!
The expressions which represents the slope of a tangent to the curve 
at any point (x, y) are:
<h3>The slope of a tangent to the curve.</h3>
Mathematically, the slope of a tangent line to the curve is given by this equation:
Given the function:
When (x + h), we have:
Next, we would find the derivative of f(x):
Read more on slope of a tangent here: brainly.com/question/26015157
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Answer:
Because The Answer Is A 2digit Number=94
Step-by-step explanation:
537-443=94 Which Is A 2digit Number
