measure of angle A

[rose]

im supposed to find the measure of angle A. i know im supposed to use tan^-1 11.2/18.3 and i get 4.639... but the answer is supposed to be around 31.5...im using a casio calculator, what am i doing wrong and i how can i fix it? i have an algebra regent tomorrow so any help will really be appreciated

 

[Gregtom3]

im supposed to find the measure of angle A. i know im supposed to use tan^-1 11.2/18.3 and i get 4.639... but the answer is supposed to be around 31.5...im using a casio calculator, what am i doing wrong and i how can i fix it? i have an algebra regent tomorrow so any help will really be appreciated

Check that your not in radian mode. Enter into the caluclator like

tan^-1(11.2/18.3)

 

[rose]

its not in radian its in degree mode but thanks anyway