oluwaseyi11
oluwaseyi11 oluwaseyi11
  • 02-08-2021
  • Mathematics
contestada

how is sin 30 equals to 1/2 and cos 60 equals to 1/2​

Respuesta :

DWRead
DWRead DWRead
  • 09-08-2021

Answer:

Step-by-step explanation:

The lengths of the sides of a 30-60-90 triangle are in the ratio 1:√3:2.

Let the length of the side opposite the 30° angle be 1, then the length of the side opposite the 60° angle is √3, and the length of the hypotenuse is 2.

sin(30°) = (leg opposite the 30° angle)/hypotenuse = 1/2

cos(60°) = (leg adjacent to the 60° angle)/hypotenuse = 1/2

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