Question

Find the measure of an angle if its supplement measures 20° less than 3 times its complement.

Answer 1

• 53.3 ° approxiametly
• In the given question:
• an angle which is three times of its compliment and less than 20°
• based on this statement , the equation formed
• 3x-20° = 180° (
• sum of supplement)
• 3x =180-20
• 3x= 160
• x=53.3
• complement angle is a sum of two angles which is equal to 90° , if two angles add up to form a right angle, then these angles are referred to as complementary angles
• supplement angle is sum of two angles which is equal to 180° ,  if two angles add up, to form a straight angle, then those angles are referred to as supplementary angles.  

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