I NEED HELP PLEASE, THANKS! :) Find the area of the triangle with a = 19, b = 14, c = 19. Round to the nearest tenth. (SHOW WORK)

 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

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.

step-by-step explanation:

classify each pair of angles as alternate interior, same-side interior, or corresponding angles.