Respuesta :

absor201

Answer:

We conclude that:

  • m∠y = 70.53°

Step-by-step explanation:

From the given right-angled triangle,

  • Hypotenuse is 15
  • The angle is ∠y
  • The adjacent to angle ∠y is 5

Using the trigonometric ratio,

cos y = adjacent / hypotenuse

substituting adjacent = 5, hypotenuse = 15

cos y = 5/15

cos y = 1/3

y = arc cos (1/3)

y = 70.53°

Therefore, we conclude that:

  • m∠y = 70.53°