Question

A) Work out the size of angle x.

C
A
to
b) Give reasons for your answer.
В B.
E
F
105
Н
G

Answer 1

`x = 75\degree`

Explanation:

`m\angle EFB +105\degree = 180\degree`

(linear pair angles)

`m\angle EFB = 180\degree - 105\degree`

`m\angle EFB = 75\degree`

`\because x = m\angle EFB`

(corresponding angles)

`\therefore x = 75\degree`