Math Problem Statement

The measure of one angle is six more than half the measure of another angle. If the angles are complementary, find both measures.

Solution

To solve this, let’s define the angles.

Let:

  • xx be the measure of the first angle.
  • yy be the measure of the second angle.

Step 1: Set up the equations

We know two things:

  1. The angles are complementary, meaning their sum is 9090^\circ. This gives us the equation: x+y=90x + y = 90
  2. The measure of one angle is six more than half the measure of the other angle. So, we also know: x=12y+6x = \frac{1}{2}y + 6

Step 2: Solve the system of equations

We have two equations:

  1. x+y=90x + y = 90
  2. x=12y+6x = \frac{1}{2}y + 6

Substitute the second equation into the first: (12y+6)+y=90\left( \frac{1}{2}y + 6 \right) + y = 90 Now, solve for yy.

Step 3: Solve for yy

Combine like terms: 12y+y+6=90\frac{1}{2}y + y + 6 = 90 32y+6=90\frac{3}{2}y + 6 = 90 Subtract 6 from both sides: 32y=84\frac{3}{2}y = 84 Multiply both sides by 23\frac{2}{3} to isolate yy: y=56y = 56

Step 4: Solve for xx

Now that we know y=56y = 56, substitute this back into the equation for xx: x=12(56)+6x = \frac{1}{2}(56) + 6 x=28+6=34x = 28 + 6 = 34

Final Answer

The two angles are:

  • x=34x = 34^\circ
  • y=56y = 56^\circ

These angles are complementary since 34+56=9034 + 56 = 90^\circ.

Would you like more details on the solution?

Here are 5 related questions:

  1. How do we solve systems of linear equations in general?
  2. What are complementary angles, and why do they sum to 90 degrees?
  3. How can you verify a solution to an angle-related problem?
  4. What are some real-world applications of complementary angles?
  5. How do you approach problems with unknowns expressed in terms of other variables?

Tip: When solving systems of equations, substituting one equation into another can help eliminate a variable, making the problem easier to solve.

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Math Problem Analysis

Mathematical Concepts

Algebra
Complementary Angles
Linear Equations

Formulas

x + y = 90
x = (1/2)y + 6

Theorems

Complementary Angles Theorem

Suitable Grade Level

Grades 6-8