Welcome to Maths Questions and Answers, where you can ask questions and receive answers from other members of Mathster.

Only your first name and the initial of your surname is publicly displayed for your privacy and protection. Please behave appropriately and with respect for others. Never give out personal identification or contact details. Mathster staff and your maths teacher reserve the right to terminate your access to this service at their discretion.

Most popular tags

Express the cosine of angle ABC as a ratio of the sides of triangle ABC

–2 votes
402 views asked May 29, 2015 by Madiya F a Novice (10 points)

1 Answer

+1 vote

cosine of angle =  adjacent / hypotenuse

so use this ratio (fraction) with the numbers that correspond to your adjacent and hypotenuse in your problem.

answered Jul 10, 2015 by Andrew H a Novice (30 points)

Related questions

0 votes
1 answer 441 views
441 views
is it possible to make a triangle that has a total length of 2.5cm and that has a reflex angle of 220 degrees
asked Jan 30, 2016 by Amerali T a Spark of Genius (158 points)
–4 votes
1 answer 806 views
806 views
Find angle x in the triangle below, giving your answer to 1 decimal place.
asked Mar 10, 2015 by Pierluigi D a Novice (2 points)
+4 votes
1 answer 822 views
822 views
49 3/2 as a power of 7
asked Jun 30, 2015 by Ceana S a Novice (10 points)
–5 votes
2 answers 654 views
654 views
Ive created assessment tasks for students but when I log in as a student the tasks do not appear.
asked May 29, 2015 by Oliver T a Novice (4 points)
–29 votes
2 answers 6,591 views
6,591 views
In a certain country ½ of 5 = 3. If the same proportion holds, what is the value of 1/3 of 10?
asked Mar 10, 2016 by a Novice (24 points)

Copyright 2013 Mathster.com

...