Question 1056745
Let h be the height of the sail. Then it's base is h-19. So:
1/2(h)(h-19)=145
h²-19h-290=0
(h-29)(h+10)=0
h=29, -10
The height of the sail is 29 m; the base is 10 m. &#9786;&#9786;&#9786;&#9786;