Respuesta :

sreyad
You have to use trigonometry as it is a right angle triangle
Because the hypotenuse(12 cm) is given and you need to find x which is the opposite side you have to use sin
so sin 30 = opposite side/hypotenuse
sin 30 = x/12
12*sin 30 = x
(sin 30 is equal to 1/2)
12*1/2 = x
x = 6

Answer:

x = 6

Step-by-step explanation:

Since the triangle is right use the sine ratio to solve for x, that is

sin30° = [tex]\frac{AB}{AC }[/tex] = [tex]\frac{x}{12}[/tex]

Multiply both sides by 12

12 × sin30° = x, hence

x = 6

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