Question

How do i do this help me

Answer 1

The box in the vertex mean that that angle= 90 degrees
The straight line indicates that 134+a=180
a=46
b=46=90
b=44

Answer 2

You first need to find angle A. You can do this by noticing that it is on a straight line with the angle with a measure of 134°, which means it must be 180 - 134 because there are 180° on a straight line. 180 - 134 = 46°, which is angle A

Angle B is complementary to angle A, which means they add up to 90°. This means that you can do 90 - 46 to find angle B, which is 44°.

I hope this helps!