Answer:
16
Step-by-step explanation:
The base of a cylinder is a circle. The equation to find the area of a circle is A=r^2. A is the area, r is the radius. So, first r squared. 4 times 4 is 16. Then you multiply 16 times , and end up with 16.
Check the picture below.
you simply come "clockwise" to get the negative angle.
and to get the positive angle, simply go around 2π and then add π/7 to it.
It should be noted that a pantograph consists of four rods that are joined together in order to form a parallelogram with the joints varying in relation to the scale of reproduction.
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Pantograph</h3>
In a pantograph, the mechanical assembly is based on the shape of a parallelogram.
It should be noted that the operation of a pantograph can be related to dilation as it has a fixed center and two points which are a drypoint that follows the contour of the original drawing, as well as a pen point that traces the reproduction in an enlarged or reduced form.
In order to enlarge a drawing, the index is positioned between the fixed center and the pen. Therefore, to reduce it, the pen is set between the fixed center and the index.
Lastly, to copy a drawing on the same scale, it can be deduced that the index and the pen are equidistant from the fixed center.
Learn more about mechanical assembly on:
brainly.com/question/258307
Answer: =-2(x+1)
Step-by-step explanation: