SOLUTION: Marley is repairing the post on her mailbox. She wanted the post to be perpendicular to the ground, but her protractor showed that the post was a 78 degree angle with the ground. S

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Marley is repairing the post on her mailbox. She wanted the post to be perpendicular to the ground, but her protractor showed that the post was a 78 degree angle with the ground. S      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 834014: Marley is repairing the post on her mailbox. She wanted the post to be perpendicular to the ground, but her protractor showed that the post was a 78 degree angle with the ground. She incorrectly concluded that she needed to increase the angle by 22 degrees. What should Marley have concluded?
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
Perpendicular means making a right angle, an angle measuring 90%5Eo .
90%5Eo-78%5Eo=12%5Eo
She should have concluded that she had to increase the angle by highlight%2812%5Eo%29 .