I need an answer asap!

Renewable resources of west and central africa include:

[ou.01]which of these is the most likely use of an electromagnetic wave which has wavelength shorter than microwaves but longer than visible light? o heat food safely o neat food safely o take images of bones and teeth o transmit radio and cellular phone signals o take images of bones and teeth o transmit radio and cellular phone signals o detect the location of objects which emit heat

The ratio of the measures of the three angles in a triangle is 14: 15: 11 find the measures of the angles