Math Problem Statement
Solution
Let's go through the image step by step and solve the problems.
1. Problem 2: Calculate the value of
You have the equation: Steps:
- Subtract 12 from both sides:
- Divide both sides by 3: So, the value of is 18.
2. Problem 3: Calculate the value of
The angles form a linear pair, meaning their sum is . Given: You can set up the equation: Steps:
- Combine like terms:
- Subtract 138 from both sides:
- Divide both sides by 2: So, the value of is 21.
3. Problem 4: Calculate the value of
This problem involves vertical angles, which are equal. Therefore: Steps:
- Add 10 to both sides:
- Divide both sides by 2: So, the value of is 34.
Would you like more details on any of the steps? Here are five related questions to explore further:
- What are the properties of vertical angles and how can they help solve similar problems?
- How do you determine when angles form a linear pair and why their sum is ?
- What happens to an equation when both sides are divided by a constant?
- How would you solve problems with more complex algebraic expressions involving angles?
- What are some real-world applications of linear and vertical angle concepts?
Tip: Always check whether angles are complementary (sum to ) or supplementary (sum to ) to guide your problem-solving approach.
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Math Problem Analysis
Mathematical Concepts
Linear Equations
Angle Relationships
Supplementary Angles
Vertical Angles
Formulas
Linear equation: ax + b = c
Sum of supplementary angles: a + b = 180°
Vertical angles: opposite angles are equal
Theorems
Supplementary Angle Theorem
Vertical Angle Theorem
Suitable Grade Level
Grades 6-8