Question

I need help plzzzzzzzzz​

Answer 1

The missing angle is 20°

Explanation:

The square by the vertex indicates that this is a right angle. A right angle measures 90°. So what you can do is subtract the 70° from the 90°, to get 20°.

Hope this helps! Have a great day! :)

Answer 2

Answer is:

a= 90-70

=20