Question

Can somebody help me with this question?

Answer 1

86 yd

Explanation:

the area of the shaded region is 2924 yd²

let b the doted side next y :

the area of the total triangle is :

A = (y+b)*68/2 = 2924+ b*68/2

• 
  `((y+b)*68)/(2)` =
  `(b*68)/(2)` + 2924
• 
  `(68*(y+b-b))/(2)` = 2924
• 68*y/2 = 2924
• 68y = 2*2924
• y= (2*2924)/68
• y= 86 yd