a.
To evaluate the types of
a.
Answer to Problem 3CYU
Vertical angles.
Explanation of Solution
Given information:
Formula used:adjacent angle definition
Calculation:
The angles 1 and 2 are angles opposite to each other when two lines cross. Hence, angles made are vertical angles.
b.
To calculate the value of angle
b.
Answer to Problem 3CYU
angle 1 is 15°
Explanation of Solution
Given information:
Angle 2 is 15°
Calculation:
Let the angle adjacent to 2 be angle 3. Hence,
Sum of angle 2 and angle 3 is 180, hence, substituting the values,
Substituting the value,
Shifting the values,
On solving,
Sum of angle 3 and angle 1 is 180, substituting the values,
Substituting the value,
On solving,
Hence, angle 1 is 15°
Chapter 1 Solutions
Geometry, Student Edition
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