Question

Hi!!!!!!!! please help c:

Answer 1

x=13

Explanation:

a triangles sum equas 180

Answer 2

x = 13

Explanation:

The sum of the 3 angles in a triangle = 180°

Sum the given angles and equate to 180, noting that ∠ C = 90°

3x + 4x - 1 + 90 = 180, that is

7x + 89 = 180 ( subtract 89 from both sides )

7x = 91 ( divide both sides by 7 )

x = 13