Answer:
A-140
Step-by-step explanation:
A starts at 0 and from the side you're measuring it would be 140 and not 40.
Answer:
468
Step-by-step explanation:
=13[42-6]
=13 (36)
=13×36
=468
Answer:
Step-by-step explanation:
If this is in terms of angles, 4x+6 must be equal to 90 since it is half of the angle produced by a line (180°) So solving for 4x+6=90, x=21