Math Problem Statement
Solution
The image shows a trapezoid with labeled angles. Let's define the trapezoid and solve for the variables and , given the angles in terms of these variables.
Observations:
- The top left angle is .
- The top right angle is .
- The bottom left angle is .
- The bottom right angle is .
Key Property of Trapezoids:
In a trapezoid, consecutive angles along the non-parallel sides are supplementary (i.e., they sum to ).
Step 1: Set up equations based on supplementary angles.
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Top left and bottom left angles (along one non-parallel side): Simplifying: 2y + 2x + 12 = 180 \quad \Rightarrow \quad 2y + 2x = 168 \quad \Rightarrow \quad y + x = 84 \tag{1}
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Top right and bottom right angles (along the other non-parallel side): Simplifying: 4x + y + 6 = 180 \quad \Rightarrow \quad 4x + y = 174 \tag{2}
Step 2: Solve the system of equations.
We now have two equations:
We can solve this system using substitution or elimination. Let me solve it.The solution to the system of equations is:
Thus, the values for the variables and are and respectively.
Would you like further clarification on any steps? Here are some related questions you might want to explore:
- How can we verify these values by substituting them back into the original angles?
- What are the specific angle measures for each corner of the trapezoid?
- Can we apply the same logic for trapezoids with different angle expressions?
- How does the property of supplementary angles help in solving trapezoids?
- Can you explain why consecutive angles along non-parallel sides must sum to ?
Tip: Always check your solutions by plugging them back into the original expressions to verify their correctness.
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Math Problem Analysis
Mathematical Concepts
Algebra
Geometry
Trapezoid Properties
Formulas
Supplementary angles: consecutive angles along non-parallel sides of a trapezoid sum to 180°
Theorems
Supplementary Angle Theorem for trapezoids
Suitable Grade Level
Grades 8-10
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