If two angles are complementary and one angle is 10 degrees less than the other,

Practice Questions

Q1
If two angles are complementary and one angle is 10 degrees less than the other, what are the measures of the angles? (2023)
  1. 40 degrees and 50 degrees
  2. 45 degrees and 45 degrees
  3. 35 degrees and 55 degrees
  4. 30 degrees and 60 degrees

Questions & Step-by-Step Solutions

If two angles are complementary and one angle is 10 degrees less than the other, what are the measures of the angles? (2023)
  • Step 1: Understand that complementary angles add up to 90 degrees.
  • Step 2: Let the first angle be represented as 'x'.
  • Step 3: Since one angle is 10 degrees less than the other, represent the second angle as 'x - 10'.
  • Step 4: Write the equation for the sum of the angles: x + (x - 10) = 90.
  • Step 5: Simplify the equation: 2x - 10 = 90.
  • Step 6: Add 10 to both sides of the equation: 2x = 100.
  • Step 7: Divide both sides by 2 to find x: x = 50 degrees.
  • Step 8: Calculate the second angle by substituting x back: x - 10 = 50 - 10 = 40 degrees.
  • Step 9: Conclude that the measures of the angles are 50 degrees and 40 degrees.
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