Question

Speaker placement. a stereo receiver is in a corner of an 18​-ft by 24​-ft room. speaker wire will run under a​ rug, diagonally, to a speaker in the far corner. if 4 feet of slack is required on each​ end, how long a piece of wire should be​ purchased?

Answer 1

The length of wire to be purchased will be found as follows:
c²=a²+b²
c²=18²+24²
c²=900
c=√900
c=30 ft
Thus the length of the wire will be:
30+4+4
=38 ft