Please help, brainliest if correct (when assignment is graded)

voila

1) faux

2) vrai

3) vrai

4) faux

5)  vrai

6) faux

7) faux

 123.6 units²

Step-by-step explanation:

Since it is an isosceles triangle, we can draw a median from the ap ex (b) to the base (ac) to create a right triangle at point (d). Then we can use the Pythagorean Theorem to find the height (bd) of the triangle.

(dc)² + (b d)² = (bc)²

 7²  +  (b d)² =  19²

          (b d)²  = 19² - 7²

          (b d)² = 312

           b d  = 17.66

A = (1/2) base x height

  = (1/2) ac x b d

  = (1/2) 14 x (17.66)

   = 7(17.66)

   = 123.6