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Consumer mathematics: Household calculations: Real world Perimeter
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Terms in this set (6)
How to find the perimeter of a polygon
use distance formula and add up the sides
Perimeter
The distance around a geometric figure.
Additionally, perimeter is one-dimensional and measured in linear units such as kilometers, meters, feet, or yards
Triangle Perimeter Formula
P=a+b+c
Square perimeter formula
P=4s
Rectangle Perimeter
P=2l+2w
Which of the following is true concerning the perimeter of a rectangular window?
You need to measure both the length and width of the window to calculate the perimeter
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Verified questions
ENGINEERING
Consider a Carnot cycle executed in a closed system with air as the working fluid. The maximum pressure in the cycle is 1300 kPa while the maximum temperature is 950 K. If the entropy increase during the isothermal heat addition process is $0.25 \mathrm{kJ} / \mathrm{kg} \cdot \mathrm{K}$ and the net work output is 110 kJ/kg, determine (a) the minimum pressure in the cycle, (b) the heat rejection from the cycle, and (c) the thermal efficiency of the cycle, (d) If an actual heat engine cycle operates between the same temperature limits and produces 5200 kW of power for an airflow rate of 95 kg/s, determine the second-law efficiency of this cycle.
ENGINEERING
The compound wooden beam is connected together by a bolt at $B$ . Assuming that the connections at $A, B, C$ , and $D$ exert only vertical forces on the beam, determine the required diameter of the bolt at $B$ and the required outer diameter of its washers if the allowable tensile stress for the bolt is $\left(\sigma_{t}\right)_{\text { allow }}=150$MPa and the allowable bearing stress for the wood is $\left(\sigma_{b}\right)_{\text { allow }}=28$MPa . Assume that the hole in the washers has the same diameter as the bolt.
ENGINEERING
Given the relationships y(t)=x(t)*h(t) and g(t)=x(3t)*h(3t), and given that x(t) has Fourier transforms X(jω) and h(t) has Fourier transform H(jω), use Fourier transform properties to show that g(t) has the form g(t)=Ay(Bt). Determine the values of A and B.
ENGINEERING
What is the temperature of the heated air at $150^{\circ} \mathrm{C}$ in $^{\circ} \mathrm{F}$ and R?
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