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How do you calculate surface area of a duct elbow 45 degree? - Answers

hi as you know the 45 deg. elbow looks like one quarter of a circle and you have two major radii ( Heel & Throat) ; so : 1st two surfaces( top&bottom) are equals to 0.25*(A1 - A2) where: A1 = pi*Rh^2 ---- Rh : Heel Radius A2 = pi * Rt^2 ----- Rt: Throat Radius 2nd Areas ( sides) are equals to rectangular areas ; so it's: A3 = A4 = W*H ,, Now you have 4 surfaces ,, Good Luck,, Moath



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How do you calculate surface area of a duct elbow 45 degree? - Answers

https://math.answers.com/geometry/How_do_you_calculate_surface_area_of_a_duct_elbow_45_degree

hi as you know the 45 deg. elbow looks like one quarter of a circle and you have two major radii ( Heel & Throat) ; so : 1st two surfaces( top&bottom) are equals to 0.25*(A1 - A2) where: A1 = pi*Rh^2 ---- Rh : Heel Radius A2 = pi * Rt^2 ----- Rt: Throat Radius 2nd Areas ( sides) are equals to rectangular areas ; so it's: A3 = A4 = W*H ,, Now you have 4 surfaces ,, Good Luck,, Moath



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https://math.answers.com/geometry/How_do_you_calculate_surface_area_of_a_duct_elbow_45_degree

How do you calculate surface area of a duct elbow 45 degree? - Answers

hi as you know the 45 deg. elbow looks like one quarter of a circle and you have two major radii ( Heel & Throat) ; so : 1st two surfaces( top&bottom) are equals to 0.25*(A1 - A2) where: A1 = pi*Rh^2 ---- Rh : Heel Radius A2 = pi * Rt^2 ----- Rt: Throat Radius 2nd Areas ( sides) are equals to rectangular areas ; so it's: A3 = A4 = W*H ,, Now you have 4 surfaces ,, Good Luck,, Moath

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      hi as you know the 45 deg. elbow looks like one quarter of a circle and you have two major radii ( Heel & Throat) ; so : 1st two surfaces( top&bottom) are equals to 0.25*(A1 - A2) where: A1 = pi*Rh^2 ---- Rh : Heel Radius A2 = pi * Rt^2 ----- Rt: Throat Radius 2nd Areas ( sides) are equals to rectangular areas ; so it's: A3 = A4 = W*H ,, Now you have 4 surfaces ,, Good Luck,, Moath

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