Question

Help me I don’t understand this

Answer 1

PLEASE RATE 5 STARS

Your answer would be 5.90 for the following reasons:

If you take your angle measurement (40) and the length from A to B you would  come out with this formula: 7 x tan 40

To figure this out on a calculator press "TAN" and type 40 and then multiply it by 7 and your answer would be 5.87 but rounded to the nearest hundredth it would be 5.90. 

Answer 2

40° + 7 = 47
180° - 47 = 133°

Hope this Helps!!