Respuesta :
A four-inch part is connected around the hot water heater as to expand. So d = 20 + 4 + 4 = 28 inches.
The area of a circle is A = π(d/2)^2
A = π(28/2)^2 = 3615.7521... inches = 3620 inches (rounded to the nearest tenth)
The area of a circle is A = π(d/2)^2
A = π(28/2)^2 = 3615.7521... inches = 3620 inches (rounded to the nearest tenth)
Answer:
[tex]307.72 in^2\\[/tex]
Step-by-step explanation:
The diameter of hot water heater [tex]= 20"\\[/tex]
There is overhang of [tex]4"\\[/tex]
Thus the new extended radius of the base of hot water heater is
[tex]= \frac{20"}{2} + 4"\\= 10" + 4"\\= 14"\\[/tex]
The heater must be of circular shape, thus the area of the water heater
[tex]=\pi r^{2} \\= \pi (\frac{d}{2})^2\\= (3.14)(0.5)(14")^2\\= 307.72 in^2\\[/tex]