Respuesta :

AayushTripathy

Answer:

x = 51°

Step-by-step explanation:

The sum of all angles in a triangle is 180°.  (Angle Sum Property)

We already know 2 angles, the right angle and the 39°.

(x + 90 + 39)° = 180°

(x + 129)° = 180°

x = (180 - 129)°

x = 51°

Answer:

X=  70.5

Step-by-step explanation:

The area of a triangle is 180

180 - 39 = 141

141/2 = 70.5

70.5 + 70.5 + 39 = 180

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