Question 853883
Let height= h=x inches
base=b=x-7 inches
area of triangle = 697 square inches
(1/2)*b*h = 697
1/2 * x-7 * x = 697
x^2-7x = 1394
x^2 - 7x - 1394=0
solve this quadratic equation , find the roots of x. Then substitute in the base.