Respuesta :

mhanifa

Answer:

C. 3√7

Step-by-step explanation:

As we know, the product of projections is equal to square of altitude in the right triangle. Applied to the given triangle, we get:

  • 9×7= y²
  • y= √9×7
  • y=3√7

Choice C. 3√7 is the correct one

Answer: C. 3√7

Step-by-step explanation: