Step-by-step explanation:
Length of arc of a circle is given as:
![l = \frac{ \theta}{360 \degree} \times 2\pi \: r \\ \\ \therefore \: 14\pi = \frac{ \theta}{360 \degree} \times 2\pi \: \times 18 \\ \\ \therefore \:\theta = \frac{14\pi \times \: 360 \degree }{2\pi \: \times 18} \\ \\ \therefore \:\theta = \frac{7 \times \: 360 \degree }{18} \\ \\ \therefore \:\theta = 7 \times \: 20 \degree \\ \\ \huge \red{ \boxed{\therefore \:\theta = 140 \degree}}](https://tex.z-dn.net/?f=l%20%3D%20%20%5Cfrac%7B%20%5Ctheta%7D%7B360%20%5Cdegree%7D%20%20%5Ctimes%202%5Cpi%20%5C%3A%20r%20%5C%5C%20%20%5C%5C%20%20%5Ctherefore%20%5C%3A%2014%5Cpi%20%3D%20%5Cfrac%7B%20%5Ctheta%7D%7B360%20%5Cdegree%7D%20%20%5Ctimes%202%5Cpi%20%5C%3A%20%20%5Ctimes%2018%20%5C%5C%20%20%5C%5C%20%5Ctherefore%20%5C%3A%5Ctheta%20%3D%20%20%5Cfrac%7B14%5Cpi%20%5Ctimes%20%5C%3A%20360%20%5Cdegree%20%7D%7B2%5Cpi%20%5C%3A%20%20%5Ctimes%2018%7D%20%5C%5C%20%20%5C%5C%20%5Ctherefore%20%5C%3A%5Ctheta%20%3D%20%20%5Cfrac%7B7%20%5Ctimes%20%5C%3A%20360%20%5Cdegree%20%7D%7B18%7D%20%20%5C%5C%20%20%5C%5C%20%5Ctherefore%20%5C%3A%5Ctheta%20%3D%20%207%20%5Ctimes%20%5C%3A%2020%20%5Cdegree%20%5C%5C%20%20%5C%5C%20%20%5Chuge%20%5Cred%7B%20%5Cboxed%7B%5Ctherefore%20%5C%3A%5Ctheta%20%3D%20%20140%20%5Cdegree%7D%7D)
Thus, the measure of central angle is 140°.
Answer:
443.418604651
Step-by-step explanation:
Thank you for the points!
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Answer:
the transistors have L=1 mm of linear size
Step-by-step explanation:
For the silicon chip the area is A=1 cm² and for the transistors the area is At=L² (L=linear size) . Then since N= 10 billion transistors of area At should fit in the area A
A=N*At
A=N*L²
solving for L
L= √(A/N)
Assuming that 1 billion=10⁹ (short scale version of billion), then
L= √(A/N) = √(1 cm²/10⁹) = 1 cm / 10³ = 1 mm
then the transistors have L=1 mm of linear size