Math Problem Statement
Solve for x in the given geometry problems:
1. Adjacent angles (x + 35)° and (2x - 5)° form a straight line.
2. Vertical angles: one is 138° and the other is (5x + 13)°.
3. Right triangle: one angle is (2x + 3)° and another is x°.
Solution
Let's solve the questions step by step.
a) Solving for in the angle equation:
- Given: Two adjacent angles, and , form a straight line.
- The sum of angles on a straight line equals .
Combine like terms:
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Math Problem Analysis
Mathematical Concepts
Geometry
Linear Equations
Angle Relationships
Triangles
Formulas
Sum of angles on a straight line = 180°
Vertical angles are equal
Sum of angles in a triangle = 180°
Theorems
Angle Sum Property of a Straight Line
Vertical Angles Theorem
Triangle Angle Sum Theorem
Suitable Grade Level
Grades 8-10