Congruent Acute or Obtuse Angles
Congruent angles are angles that have the same measure. This object shown is an air duct. The two angles that are shown are two congruent acute angles. An air duct is used by people to transport conditioned air to any room in a house or building where it is needed. An air duct is from the metal fabrication industry. An air duct is used by the metal fabrication industry to sell it to heating and air conditioning contractors.
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