Question

Helppp meee thankk youu

Answer 1

14.0 ft hope this helps!

Answer 2

Explanation:

`R =(1)/(2)abSin \ C\\\\\\= (1)/(2)*12.1*13.8*Sin \ 71 \\\\\\= (1)/(2)*12.1 *13.8 * 0.95\\\\= 79.3 \ ft^(2)`