Answer:
20. [tex] \angle3[/tex]
21. [tex]\angle F[/tex]
22. [tex] \angle BHF[/tex]
Additional information:
Vertical angle means opposite angles.
- It states that If two lines intersect each other, then the vertically opposite angles are equal.
For eg :- In this diagram,
[tex] \angle1 = \angle3[/tex]
[tex] \angle4= \angle6[/tex]
Linear pair means to form 180°.
- It states that the two axioms above together is called the Linear Pair Axiom.
- If the sum of two adjacent angles is 180°, if non-common arms of the angles form a line.
For eg :- In this diagram,
[tex] \angle1 + \angle2 = 180 \degree[/tex]
[tex] \angle4 + \angle5= 180 \degree[/tex]
