Question

Help me, will give about 12 points

Answer 1

45°

Explanation:

Since these angles all make 180° So we can do the sum like this

x can be the angle we want to find .

180°= 45° + 90° + x

180°= 135° + x

180° -135 ° = x (Due to transposition )

45°=x

or x=45°

To verify the answer

add them all and you will get 180°

45°+90°+45° = 180°